Enum LabelSetOp

pub enum LabelSetOp {
    NoOp,
    Clear,
    Append(HashSet<String>),
    Remove(HashSet<String>),
}

An operation on time series labels that might be performed by a particular (sub-)expression.

An expression may perform more than one operation

Variants

NoOp

Convenience op that does nothing

Clear

Clears all labels

Append(HashSet<String>)

Explicitly includes a set of labels in the output set

Remove(HashSet<String>)

Explicitly removes a set of labels from the output set

Implementations

impl LabelSetOp

pub fn noop(expression: Expression, span: Option<Span>) -> LabelSetOpTuple

pub fn clear(expression: Expression, span: Option<Span>) -> LabelSetOpTuple

pub fn append( expression: Expression, span: Option<Span>, labels: HashSet<String>, ) -> LabelSetOpTuple

pub fn remove( expression: Expression, span: Option<Span>, labels: HashSet<String>, ) -> LabelSetOpTuple

Trait Implementations

impl Clone for LabelSetOp

fn clone(&self) -> LabelSetOp

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LabelSetOp

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

Formats the value using the given formatter.

impl PartialEq for LabelSetOp

fn eq(&self, other: &LabelSetOp) -> 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 LabelSetOp

impl StructuralPartialEq for LabelSetOp