pub struct Len<M>(/* private fields */);
Expand description
The Len
mapper returned by len()
Trait Implementations§
Auto Trait Implementations§
impl<M> RefUnwindSafe for Len<M>where
M: RefUnwindSafe,
impl<M> Send for Len<M>where
M: Send,
impl<M> Sync for Len<M>where
M: Sync,
impl<M> Unpin for Len<M>where
M: Unpin,
impl<M> UnwindSafe for Len<M>where
M: 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