Struct StringTable 

pub struct StringTable { /* private fields */ }

String interning table for fast string comparisons.

Implementations

impl StringTable

pub fn new() -> Self

Creates a new empty string table.

pub fn intern(&mut self, s: &str) -> StringId

Interns a string, returning its ID.

If the string already exists, returns the existing ID.

pub fn get(&self, id: StringId) -> Option<&str>

Gets the string for an ID.

pub fn get_id(&self, s: &str) -> Option<StringId>

Gets the ID for a string without interning.

pub fn len(&self) -> usize

Returns the number of interned strings.

pub fn is_empty(&self) -> bool

Returns true if the table is empty.

Trait Implementations

impl Debug for StringTable

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

Formats the value using the given formatter.

impl Default for StringTable

fn default() -> StringTable

Returns the “default value” for a type.