Enum DeviceTier 

pub enum DeviceTier {
    Display,
    Sensor,
    Actuator,
    Rich,
}

The capability ladder for small and wearable surfaces.

The order is meaningful: a higher tier can satisfy requirements for any lower tier. The variants are not concrete device kinds.

Variants

Display

A display-only surface can show a reduced glance or pane.

Sensor

A sensor surface contributes live stream fields but does not act back.

Actuator

An actuator surface can emit haptics, HUD output, face output, or sound.

Rich

A rich surface combines high-rate display with pose or equivalent stream data.

Implementations

impl DeviceTier

pub const ALL: [DeviceTier; 4]

Every tier in ascending capability order.

pub fn token(self) -> &'static str

The stable token used in profile expressions.

pub fn to_symbol(self) -> Symbol

Encodes the tier as an unqualified symbol.

pub fn from_symbol(symbol: &Symbol) -> Option<Self>

Parses an unqualified tier symbol.

pub fn supports(self, required: DeviceTier) -> bool

Returns true when this tier can satisfy a requirement for required.

Trait Implementations

impl Clone for DeviceTier

fn clone(&self) -> DeviceTier

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for DeviceTier

impl Debug for DeviceTier

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

Formats the value using the given formatter.

impl Eq for DeviceTier

impl Hash for DeviceTier

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for DeviceTier

fn cmp(&self, other: &DeviceTier) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for DeviceTier

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for DeviceTier

fn partial_cmp(&self, other: &DeviceTier) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for DeviceTier