Struct StringInterner 

pub struct StringInterner { /* private fields */ }

Arena-based string interner for efficient string deduplication.

Implementations

impl StringInterner

pub fn new() -> Self

Create a new empty interner.

pub fn with_capacity(string_bytes: usize, num_strings: usize) -> Self

Create an interner with pre-allocated capacity.

pub fn intern_bytes(&mut self, s: &[u8]) -> StringId

Intern a byte string, returning its StringId.

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

Intern a UTF-8 string. Convenience wrapper around intern_bytes.

pub fn get_bytes_id(&self, s: &[u8]) -> Option<StringId>

Get the StringId for a byte string without interning it.

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

Get the StringId for a UTF-8 string without interning it.

pub fn get_bytes(&self, id: StringId) -> Option<&[u8]>

Get the raw bytes for a StringId.

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

Get the string for a StringId, if it’s valid UTF-8.

pub fn len(&self) -> usize

Number of interned strings.

pub fn is_empty(&self) -> bool

Check if the interner is empty.

Trait Implementations

impl Clone for StringInterner

fn clone(&self) -> StringInterner

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for StringInterner

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

Formats the value using the given formatter.

impl Default for StringInterner

fn default() -> StringInterner

Returns the “default value” for a type.