pub enum NeverNativeValue {}
Expand description
A value that is never in a native representation.
This is type is useful in conjunction with NativeOrEncoded
.
Trait Implementations§
Source§impl Decode for NeverNativeValue
impl Decode for NeverNativeValue
Source§impl Encode for NeverNativeValue
impl Encode for NeverNativeValue
Source§fn size_hint(&self) -> usize
fn size_hint(&self) -> usize
If possible give a hint of expected size of the encoding. Read more
Source§fn encode_to<T>(&self, dest: &mut T)
fn encode_to<T>(&self, dest: &mut T)
Convert self to a slice and append it to the destination.
Source§fn using_encoded<R, F>(&self, f: F) -> R
fn using_encoded<R, F>(&self, f: F) -> R
Convert self to a slice and then invoke the given closure with it.
Source§fn encoded_size(&self) -> usize
fn encoded_size(&self) -> usize
Calculates the encoded size. Read more
Source§impl PartialEq for NeverNativeValue
impl PartialEq for NeverNativeValue
impl EncodeLike for NeverNativeValue
impl StructuralPartialEq for NeverNativeValue
Auto Trait Implementations§
impl Freeze for NeverNativeValue
impl RefUnwindSafe for NeverNativeValue
impl Send for NeverNativeValue
impl Sync for NeverNativeValue
impl Unpin for NeverNativeValue
impl UnwindSafe for NeverNativeValue
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
Source§impl<T> DecodeLimit for Twhere
T: Decode,
impl<T> DecodeLimit for Twhere
T: Decode,
Source§impl<T> Downcast for Twhere
T: Any,
impl<T> Downcast for Twhere
T: Any,
Source§fn into_any(self: Box<T>) -> Box<dyn Any>
fn into_any(self: Box<T>) -> Box<dyn Any>
Convert
Box<dyn Trait>
(where Trait: Downcast
) to Box<dyn Any>
. Box<dyn Any>
can
then be further downcast
into Box<ConcreteType>
where ConcreteType
implements Trait
.Source§fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>
fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>
Convert
Rc<Trait>
(where Trait: Downcast
) to Rc<Any>
. Rc<Any>
can then be
further downcast
into Rc<ConcreteType>
where ConcreteType
implements Trait
.Source§fn as_any(&self) -> &(dyn Any + 'static)
fn as_any(&self) -> &(dyn Any + 'static)
Convert
&Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &Any
’s vtable from &Trait
’s.Source§fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
Convert
&mut Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &mut Any
’s vtable from &mut Trait
’s.Source§impl<T> DowncastSync for T
impl<T> DowncastSync for T
Source§impl<T> Instrument for T
impl<T> Instrument for T
Source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
Source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
Source§impl<T, Outer> IsWrappedBy<Outer> for T
impl<T, Outer> IsWrappedBy<Outer> for T
Source§impl<S, T> UncheckedInto<T> for Swhere
T: UncheckedFrom<S>,
impl<S, T> UncheckedInto<T> for Swhere
T: UncheckedFrom<S>,
Source§fn unchecked_into(self) -> T
fn unchecked_into(self) -> T
The counterpart to
unchecked_from
.