Struct ObjectArena 

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

Arena allocator that bump-allocates objects of type T.

Implementations

impl<T> ObjectArena<T>

pub fn with_capacity(cap: usize) -> Self

Create an empty arena with a pre-allocated hint.

pub fn alloc(&mut self, value: T) -> ArenaHandle

Allocate an object and return its handle.

pub fn get(&self, handle: ArenaHandle) -> Option<&T>

Get a reference, validating the generation.

pub fn len(&self) -> usize

Number of live objects in the arena.

pub fn is_empty(&self) -> bool

Returns true if the arena is empty.

pub fn reset(&mut self)

Reset the arena, invalidating all existing handles.

pub fn generation(&self) -> Generation

Current generation counter.