Struct StringInterner 

pub struct StringInterner { /* private fields */ }

A string interner that stores unique strings and returns symbols

This is the single-threaded version. For concurrent access, use ConcurrentStringInterner.

Implementations

impl StringInterner

pub fn new() -> Self

Create a new empty string interner

pub fn with_capacity(capacity: usize) -> Self

Create a new string interner with pre-allocated capacity

pub fn get_or_intern(&mut self, s: &str) -> Symbol

Intern a string and return its symbol

If the string is already interned, returns the existing symbol. Otherwise, creates a new symbol for this string.

pub fn get_or_intern_owned(&mut self, s: String) -> Symbol

Intern an owned string (avoids clone if string is new)

pub fn get(&self, s: &str) -> Option<Symbol>

Look up an already-interned string

Returns None if the string has not been interned

pub fn resolve(&self, symbol: Symbol) -> Option<&str>

Resolve a symbol to its string

Returns None if the symbol is invalid

pub fn len(&self) -> usize

Get the number of interned strings

pub fn is_empty(&self) -> bool

Check if the interner is empty

pub fn memory_usage(&self) -> usize

Get memory usage estimate in bytes

Trait Implementations

impl Debug for StringInterner

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

Formats the value using the given formatter.

impl Default for StringInterner

fn default() -> Self

Returns the “default value” for a type.