Struct egui::cache::FrameCache

pub struct FrameCache<Value, Computer> {
    generation: u32,
    computer: Computer,
    cache: IntMap<u64, (u32, Value)>,
}

Caches the results of a computation for one frame. If it is still used next frame, it is not recomputed. If it is not used next frame, it is evicted from the cache to save memory.

Fields

generation: u32

computer: Computer

cache: IntMap<u64, (u32, Value)>

Implementations

impl<Value, Computer> FrameCache<Value, Computer>

pub fn new(computer: Computer) -> Self

pub fn evict_cache(&mut self)

Must be called once per frame to clear the cache.

impl<Value, Computer> FrameCache<Value, Computer>

pub fn get<Key>(&mut self, key: Key) -> Value

where Key: Copy + Hash, Value: Clone, Computer: ComputerMut<Key, Value>,

Get from cache (if the same key was used last frame) or recompute and store in the cache.

Trait Implementations

impl<Value: 'static + Send + Sync, Computer: 'static + Send + Sync> CacheTrait for FrameCache<Value, Computer>

fn update(&mut self)

Call once per frame to evict cache.

fn len(&self) -> usize

Number of values currently in the cache.

fn as_any_mut(&mut self) -> &mut dyn Any

impl<Value, Computer> Default for FrameCache<Value, Computer>

where Computer: Default,

fn default() -> Self

Returns the “default value” for a type.