Enum rkyv::option::ArchivedOption [−][src]
#[repr(u8)]
pub enum ArchivedOption<T> {
None,
Some(T),
}
Expand description
Variants
None
No value
Some(T)
Some value T
Implementations
Converts from Pin<&ArchivedOption<T>>
to Option<Pin<&T>>
.
Converts from Pin<&mut ArchivedOption<T>>
to Option<Pin<&mut T>>
.
Returns an iterator over the possibly contained value.
Returns a mutable iterator over the possibly contained value.
Inserts v
into the option if it is None
, then returns a mutable
reference to the contained value.
Inserts a value computed from f
into the option if it is None
, then
returns a mutable reference to the contained value.
Converts from &mut ArchivedOption<T>
to Option<&mut T::Target>
.
Leaves the original ArchivedOption
in-place, creating a new Option
with a mutable
reference to the inner type’s Deref::Target
type.
Trait Implementations
type Error = EnumCheckError<u8>
type Error = EnumCheckError<u8>
The error that may result from checking the type.
unsafe fn check_bytes<'__bytecheck>(
value: *const Self,
context: &mut __C
) -> Result<&'__bytecheck Self, Self::Error>
unsafe fn check_bytes<'__bytecheck>(
value: *const Self,
context: &mut __C
) -> Result<&'__bytecheck Self, Self::Error>
Checks whether the given pointer points to a valid value within the given context. Read more
impl<T: Archive, D: Fallible + ?Sized> Deserialize<Option<T>, D> for ArchivedOption<T::Archived> where
T::Archived: Deserialize<T, D>,
impl<T: Archive, D: Fallible + ?Sized> Deserialize<Option<T>, D> for ArchivedOption<T::Archived> where
T::Archived: Deserialize<T, D>,
This method returns an ordering between self
and other
values if one exists. Read more
This method tests less than (for self
and other
) and is used by the <
operator. Read more
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
Auto Trait Implementations
impl<T> RefUnwindSafe for ArchivedOption<T> where
T: RefUnwindSafe,
impl<T> Send for ArchivedOption<T> where
T: Send,
impl<T> Sync for ArchivedOption<T> where
T: Sync,
impl<T> Unpin for ArchivedOption<T> where
T: Unpin,
impl<T> UnwindSafe for ArchivedOption<T> where
T: UnwindSafe,
Blanket Implementations
type ArchivedMetadata = ()
type ArchivedMetadata = ()
The archived version of the pointer metadata for this type.
Converts some archived metadata to the pointer metadata for itself.
Mutably borrows from an owned value. Read more