Struct RcStrInterning 

pub struct RcStrInterning { /* private fields */ }

Runtime string interning table.

Deduplicates strings by storing them in an FxHashSet<RcStr>. Strings shorter than the inline threshold are already zero-allocation, so only longer strings benefit from interning.

Implementations

impl RcStrInterning

pub fn new() -> Self

Create a new empty interning table.

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

Intern a string slice. Returns a cheap-to-clone RcStr.

Strings below the inline threshold are returned directly (they are already zero-allocation inline atoms). Longer strings are looked up in the interning table and deduplicated.

pub fn intern_cow(&mut self, s: Cow<'_, str>) -> RcStr

Intern a Cow<str>. When the cow is Owned, avoids an extra copy if the string is not yet interned.

pub fn intern_display(&mut self, v: &impl Display) -> RcStr

Intern the Display output of a value.

Trait Implementations

impl Default for RcStrInterning

fn default() -> Self

Returns the “default value” for a type.