Struct LabelsBuilder

pub struct LabelsBuilder { /* private fields */ }

Builder for Labels

Implementations

impl LabelsBuilder

pub fn new(names: Vec<&str>) -> LabelsBuilder

Create a new empty LabelsBuilder with the given names

pub fn reserve(&mut self, additional: usize)

Reserve space for additional other entries in the labels.

pub fn size(&self) -> usize

Get the number of labels in a single value

pub fn add<T>(&mut self, entry: &[T])

where T: Copy + Into<LabelValue>,

Add a single entry to this set of labels.

This function will panic when attempting to add the same label more than once.

pub fn finish(self) -> Labels

Finish building the Labels.

This function checks that all entries in the labels are unique.

pub fn finish_assume_unique(self) -> Labels

Finish building the Labels, assuming that all entries are unique.

This is faster than finish as it does not perform a uniqueness check on the labels entries. It is the caller’s responsibility to ensure that entries are unique.

Panics

If the set of names is not valid (contains duplicates or invalid names).

Trait Implementations

impl Clone for LabelsBuilder

fn clone(&self) -> LabelsBuilder

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LabelsBuilder

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

Formats the value using the given formatter.