Struct GcArena 

pub struct GcArena { /* private fields */ }

Bump-pointer arena + free-list hybrid allocator

Implementations

impl GcArena

pub fn new(capacity: usize) -> Option<Self>

Create a new arena, allocating capacity bytes from the system allocator.

pub fn alloc(&self, layout: Layout) -> Option<NonNull<u8>>

Main allocation path: bump → free-list → None.

Bump is checked first because in practice most dead nodes are reclaimed via frontier rewind (see [collect_hole]), so the free-list is usually empty. Swapping the order avoids an unnecessary linked-list traversal on the common (bump) path.

Trait Implementations

impl Debug for GcArena

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

Formats the value using the given formatter.

impl Drop for GcArena

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.