Struct LabelMatcher 

pub struct LabelMatcher {
    pub name: String,
    pub op: LabelMatchOp,
    pub value: String,
}

A single label matcher.

Label matchers filter time series based on their label values.

Example

use rusty_promql_parser::parser::selector::{LabelMatcher, LabelMatchOp};

let matcher = LabelMatcher::new("job", LabelMatchOp::Equal, "prometheus");
assert_eq!(matcher.to_string(), r#"job="prometheus""#);

Fields

name: String

Label name (e.g., “job”, “name”).

op: LabelMatchOp

Matching operator.

value: String

Value to match against.

Implementations

impl LabelMatcher

pub fn new( name: impl Into<String>, op: LabelMatchOp, value: impl Into<String>, ) -> Self

Create a new label matcher

pub fn matches_empty(&self) -> bool

Check if this matcher matches the empty string

Trait Implementations

impl Clone for LabelMatcher

fn clone(&self) -> LabelMatcher

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LabelMatcher

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

Formats the value using the given formatter.

impl Display for LabelMatcher

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

Formats the value using the given formatter.

impl PartialEq for LabelMatcher

fn eq(&self, other: &LabelMatcher) -> 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 Eq for LabelMatcher

impl StructuralPartialEq for LabelMatcher