Struct Istr

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

An ID for an interned string. Cheap to copy, and to perform equality checks on, as internally it is simply a NonZeroU32 ID. It can also be stored inside an Option for free due to niche optimisation.

In order to get the associated string, the interned string must be looked up in the interner it was created with.

Note that performing an equality check on interned strings from different interners will give a nonsensical result.

Trait Implementations

impl Clone for Istr

fn clone(&self) -> Istr

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Istr

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

Formats the value using the given formatter.

impl Hash for Istr

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Index<Istr> for Interner

type Output = str

The returned type after indexing.

fn index(&self, interned: Istr) -> &Self::Output

Performs the indexing (container[index]) operation.

impl PartialEq for Istr

fn eq(&self, other: &Istr) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for Istr

impl Eq for Istr

impl StructuralPartialEq for Istr