Struct WithOpaqueHeader
#[repr(transparent)]
pub(in ::boxed::thin) struct WithOpaqueHeader(pub(in ::boxed::thin) NonNull<u8>);
An opaque representation of WithHeader<H> to avoid the
projection invariance of <T as Pointee>::Metadata.
Fields
0: NonNull<u8>
Implementations
impl WithOpaqueHeader
fn new<H, T>(header: H, value: T) -> Selffn new_unsize_zst<Dyn, T>(value: T) -> Self where Dyn: ?Sized, T: Unsize<Dyn>,fn try_new<H, T>(header: H, value: T) -> Result<Self, AllocError>
Auto Trait Implementations
impl !Send for WithOpaqueHeader
impl !Sync for WithOpaqueHeader
impl Freeze for WithOpaqueHeader
impl RefUnwindSafe for WithOpaqueHeader
impl Unpin for WithOpaqueHeader
impl UnsafeUnpin for WithOpaqueHeader
impl UnwindSafe for WithOpaqueHeader
Blanket Implementations
impl<T> Any for WithOpaqueHeader
where
T: 'static + ?Sized,
fn type_id(&self) -> TypeId
impl<T> Borrow<T> for WithOpaqueHeader
where
T: ?Sized,
fn borrow(&self) -> &T
impl<T> BorrowMut<T> for WithOpaqueHeader
where
T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
impl<T> From<T> for WithOpaqueHeader
fn from(t: T) -> TReturns the argument unchanged.
impl<T> SizeHint for WithOpaqueHeader
where
T: ?Sized,
fn lower_bound(&self) -> usizefn upper_bound(&self) -> Option<usize>
impl<T> SizedTypeProperties for WithOpaqueHeader
impl<T, U> Into<U> for WithOpaqueHeader
where
U: From<T>,
fn into(self) -> UCalls
U::from(self).That is, this conversion is whatever the implementation of
[From]<T> for Uchooses to do.
impl<T, U> TryFrom<U> for WithOpaqueHeader
where
U: Into<T>,
type Error = Infallible;fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
impl<T, U> TryInto<U> for WithOpaqueHeader
where
U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error;fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>