Struct Interner

struct Interner {
    arena: Arena,
    names: HashMap<&'static str, Symbol, BuildHasherDefault<FxHasher>>,
    strings: Vec<&'static str>,
    sym_base: NonZero<u32>,
}

🔬This is a nightly-only experimental API. (proc_macro_internals #27812)

Basic interner for a Symbol, inspired by the one in rustc_span.

Fields

arena: Arena

🔬This is a nightly-only experimental API. (proc_macro_internals #27812)

names: HashMap<&'static str, Symbol, BuildHasherDefault<FxHasher>>

🔬This is a nightly-only experimental API. (proc_macro_internals #27812)

strings: Vec<&'static str>

🔬This is a nightly-only experimental API. (proc_macro_internals #27812)

sym_base: NonZero<u32>

🔬This is a nightly-only experimental API. (proc_macro_internals #27812)

Implementations

impl Interner

fn intern(&mut self, string: &str) -> Symbol

🔬This is a nightly-only experimental API. (proc_macro_internals #27812)

fn get(&self, symbol: Symbol) -> &str

🔬This is a nightly-only experimental API. (proc_macro_internals #27812)

Reads a symbol’s value from the store while it is held.

fn clear(&mut self)

🔬This is a nightly-only experimental API. (proc_macro_internals #27812)

Clear all symbols from the store, invalidating them such that get will panic if they are accessed in the future.