pub struct Empty;
Expand description
The empty Index implementation.
This can be used in combination with Builder::new_with
to ensure that
that tree does not store any information on spans, reducing overhead if this
is not necessary.
Trait Implementations§
Source§impl Ord for Empty
impl Ord for Empty
Source§impl PartialOrd for Empty
impl PartialOrd for Empty
impl Copy for Empty
impl Eq for Empty
impl Index for Empty
impl StructuralPartialEq for Empty
Auto Trait Implementations§
impl Freeze for Empty
impl RefUnwindSafe for Empty
impl Send for Empty
impl Sync for Empty
impl Unpin for Empty
impl UnwindSafe for Empty
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