Struct Arena 

pub struct Arena<const N: usize> { /* private fields */ }

Arena allocator for temporary allocations

Fast allocator for temporary objects that will all be freed together

Implementations

impl<const N: usize> Arena<N>

pub const fn new() -> Self

Create a new arena

pub fn allocate(&self, size: usize, align: usize) -> Result<NonNull<u8>>

Allocate from the arena

Errors

Returns error if insufficient space

pub fn allocate_typed<T>(&self) -> Result<NonNull<T>>

Allocate a typed value

Returns a NonNull<T> pointer to properly aligned, uninitialized memory. The caller is responsible for initializing the memory before use.

Errors

Returns error if insufficient space

pub fn clear(&self)

Clear the arena (reclaim all memory)

pub fn used(&self) -> usize

Get used bytes

pub fn available(&self) -> usize

Get available bytes

Trait Implementations

impl<const N: usize> Default for Arena<N>

fn default() -> Self

Returns the “default value” for a type.