Enum rkyv::std_impl::shared::ArchivedRcWeak

#[repr(u8)]
pub enum ArchivedRcWeak<T: ArchivePointee + ?Sized> {
    None,
    Some(ArchivedRc<T>),
}

An archived rc::Weak.

Variants

None

A null weak pointer

Some(ArchivedRc<T>)

A weak pointer to some shared pointer

Implementations

impl<T: ArchivePointee + ?Sized> ArchivedRcWeak<T>

pub fn upgrade(&self) -> Option<&ArchivedRc<T>>

Attempts to upgrade the weak pointer to an ArchivedArc.

Returns None if a null weak pointer was serialized.

pub fn upgrade_pin(self: Pin<&mut Self>) -> Option<Pin<&mut ArchivedRc<T>>>

Attempts to upgrade a pinned mutable weak pointer.

Trait Implementations

impl<T: ArchivePointee + CheckBytes<C> + Pointee + ?Sized + 'static, C: ArchiveBoundsContext + SharedArchiveContext + ?Sized> CheckBytes<C> for ArchivedRcWeak<T> where
    T::ArchivedMetadata: CheckBytes<C>,
    C::Error: Error,
    <T as Pointee>::Metadata: LayoutMetadata<T>, 

type Error = WeakPointerError<<T::ArchivedMetadata as CheckBytes<C>>::Error, T::Error, C::Error>

The error that may result from checking the type.

unsafe fn check_bytes<'a>(
    value: *const Self,
    context: &mut C
) -> Result<&'a Self, Self::Error>

Checks whether the given pointer points to a valid value within the given context.