Struct NameIndex 

pub struct NameIndex { /* private fields */ }

A simple ordered index mapping names to integer IDs.

Implementations

impl NameIndex

pub fn new() -> Self

Create a new empty name index.

pub fn insert(&mut self, name: impl Into<String>) -> usize

Insert a name, returning its ID. If the name is already present, returns the existing ID.

pub fn get_id(&self, name: &str) -> Option<usize>

Get the ID for a name, if it exists.

pub fn get_name(&self, id: usize) -> Option<&str>

Get the name for an ID.

pub fn len(&self) -> usize

Get the number of names in the index.

pub fn is_empty(&self) -> bool

Check if the index is empty.

pub fn all_names(&self) -> &[String]

Get all names in insertion order.

Trait Implementations

impl Clone for NameIndex

fn clone(&self) -> NameIndex

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for NameIndex

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

Formats the value using the given formatter.

impl Default for NameIndex

fn default() -> NameIndex

Returns the “default value” for a type.