Struct Handle 

pub struct Handle<T> { /* private fields */ }

An opaque, copyable reference to a value stored in a Region.

A handle wraps a slotmap::DefaultKey (an index plus a generation) and is Copy and unconditionally Send + Sync regardless of T — it owns no T, it only names one. The PhantomData<fn() -> T> keeps the handle typed (so a Handle<A> cannot be passed to a Region<B>) while staying covariant in T and free of any drop/auto-trait obligations.

Trait Implementations

impl<T> Clone for Handle<T>

fn clone(&self) -> Handle<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T> Copy for Handle<T>

impl<T> Debug for Handle<T>

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

Formats the value using the given formatter.

impl<T> Eq for Handle<T>

impl<T> Hash for Handle<T>

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

where H: Hasher,

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<T> PartialEq for Handle<T>

fn eq(&self, other: &Handle<T>) -> 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.