Enum LabelKey 

pub enum LabelKey {
    Value(String),
}

A metadata label used to constrain values at a given coordinate dimension.

LabelKey represents attribute values associated with indices — for example, GPU model names like "A100" or capabilities like “AVX-512”.

Labels are not dimension names (like "zone" or "rack"); they are values assigned to elements at a given dimension, and are used by Selection::Label to restrict which values are eligible during selection or routing. For example, a selection like sel!(["A100"]*) matches only indices at the current dimension whose associated label value is "A100".

Ord is derived to allow deterministic sorting and set membership, based on lexicographic ordering of label strings.

Variants

Value(String)

A plain string label value.

Trait Implementations

impl Clone for LabelKey

fn clone(&self) -> LabelKey

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LabelKey

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for LabelKey

fn deserialize<__D>( __deserializer: __D, ) -> Result<LabelKey, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for LabelKey

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

Formats the value using the given formatter.

impl From<&str> for LabelKey

fn from(s: &str) -> LabelKey

Converts to this type from the input type.

impl From<String> for LabelKey

fn from(s: String) -> LabelKey

Converts to this type from the input type.

impl Hash for LabelKey

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

where __H: Hasher,

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 LabelKey

fn cmp(&self, other: &LabelKey) -> 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 LabelKey

fn eq(&self, other: &LabelKey) -> 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 PartialOrd for LabelKey

fn partial_cmp(&self, other: &LabelKey) -> 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 Serialize for LabelKey

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for LabelKey

impl StructuralPartialEq for LabelKey