Struct DrawSlotAllocator 

pub struct DrawSlotAllocator { /* private fields */ }

Hands out draw-record slots, reusing vacated ones before growing.

Implementations

impl DrawSlotAllocator

pub fn with_len(len: usize) -> Self

Start with len slots already in use (the draw objects built at init).

pub fn allocate(&mut self) -> SlotAlloc

Hand out a slot: a vacated one if any is free, else the next new index. The caller writes its draw object at the returned slot and, on Append, grows whatever side tables run parallel to draw_objects.

pub fn free(&mut self, slot: usize)

Return a slot to the free list for a later allocate to reuse.

Trait Implementations

impl Debug for DrawSlotAllocator

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

Formats the value using the given formatter.

impl Default for DrawSlotAllocator

fn default() -> DrawSlotAllocator

Returns the “default value” for a type.