Struct Interner

pub struct Interner(/* private fields */);

The string interner.

See the module documentation for detail.

Implementations

impl Interner

pub fn new() -> Interner

Creates a new interner.

pub fn intern<S>(&mut self, s: S) -> Symbol

where S: Borrow<str>, Box<str>: From<S>,

Inserts a string into the interner. Returns a Symbol which can be use to extract the original string.

pub fn iter(&self) -> Iter<'_>

Iterates the content of the interner.

Examples

use cov::Interner;

let mut interner = Interner::new();
let s1 = interner.intern("one");
let s2 = interner.intern("two");
let s3 = interner.intern("three");

let iter_res = interner.iter().collect::<Vec<_>>();
assert_eq!(iter_res, vec![
    (s1, "one"),
    (s2, "two"),
    (s3, "three"),
]);

Trait Implementations

impl Debug for Interner

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

Formats the value using the given formatter.

impl Default for Interner

fn default() -> Interner

Returns the “default value” for a type.

impl Index<Symbol> for Interner

type Output = str

The returned type after indexing.

fn index(&self, index: Symbol) -> &str

Performs the indexing (container[index]) operation.