pub struct Null;
Expand description
The absence of any meaningful value.
Trait Implementations§
source§impl PartialEq for Null
impl PartialEq for Null
source§impl Value for Null
impl Value for Null
source§fn stream<'sval, S: Stream<'sval> + ?Sized>(
&'sval self,
stream: &mut S
) -> Result
fn stream<'sval, S: Stream<'sval> + ?Sized>( &'sval self, stream: &mut S ) -> Result
Stream this value through a
Stream
.source§fn to_f32(&self) -> Option<f32>
fn to_f32(&self) -> Option<f32>
Try convert this value into a 32bit binary floating point number.
impl Copy for Null
impl Eq for Null
impl StructuralPartialEq for Null
Auto Trait Implementations§
impl Freeze for Null
impl RefUnwindSafe for Null
impl Send for Null
impl Sync for Null
impl Unpin for Null
impl UnwindSafe for Null
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