Enum Availability

#[repr(u32)]
pub enum Availability {
    Required = 1,
    Optional = 2,
    SameAsTarget = 3,
    Transitional = 4,
}

Describes the expected availability of the capability.

Some capabilities may not be present on all system configurations. In those cases, the availability will be declared as OPTIONAL along the chains of exposes/offers/uses, and the capability would be routed from void on system configurations where it does not make sense to route or provide a particular capability (e.g. graphical capabilities on a headless system).

Variants

Required = 1

Optional = 2

SameAsTarget = 3

Transitional = 4

Trait Implementations

impl Clone for Availability

fn clone(&self) -> Availability

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Availability

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Encodable for Availability

type Encoded = WireAvailability

The wire type for the value.

const COPY_OPTIMIZATION: CopyOptimization<Self> = _

An optimization flag that allows the bytes of this type to be copied directly during encoding instead of calling encode.

impl<___E> Encode<___E> for Availability

where ___E: ?Sized,

fn encode( &mut self, _: &mut ___E, out: &mut MaybeUninit<Self::Encoded>, ) -> Result<(), EncodeError>

Encodes this value into an encoder and output.

impl From<Availability> for WireAvailability

fn from(natural: Availability) -> Self

Converts to this type from the input type.

impl From<WireAvailability> for Availability

fn from(wire: WireAvailability) -> Self

Converts to this type from the input type.

impl PartialEq for Availability

fn eq(&self, other: &Availability) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl TakeFrom<WireAvailability> for Availability

fn take_from(from: &WireAvailability) -> Self

Converts from the given T, taking any resources that can’t be cloned.

const COPY_OPTIMIZATION: CopyOptimization<Self> = _

An optimization flag that allows the bytes of this type to be copied directly during conversion instead of calling take_from.

impl Copy for Availability

impl Eq for Availability

impl StructuralPartialEq for Availability