FrameCache

notan::egui::cache

Struct FrameCache 

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pub struct FrameCache<Value, Computer> { /* private fields */ }
Expand description

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.

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

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pub fn new(computer: Computer) -> FrameCache<Value, Computer>

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pub fn evict_cache(&mut self)

Must be called once per frame to clear the cache.

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

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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§

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

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fn update(&mut self)

Call once per frame to evict cache.
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fn len(&self) -> usize

Number of values currently in the cache.
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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

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

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fn default() -> FrameCache<Value, Computer>

Returns the “default value” for a type. Read more

Auto Trait Implementations§

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impl<Value, Computer> Freeze for FrameCache<Value, Computer>
where Computer: Freeze,

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impl<Value, Computer> RefUnwindSafe for FrameCache<Value, Computer>
where Computer: RefUnwindSafe, Value: RefUnwindSafe,

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impl<Value, Computer> Send for FrameCache<Value, Computer>
where Computer: Send, Value: Send,

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impl<Value, Computer> Sync for FrameCache<Value, Computer>
where Computer: Sync, Value: Sync,

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impl<Value, Computer> Unpin for FrameCache<Value, Computer>
where Computer: Unpin, Value: Unpin,

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impl<Value, Computer> UnwindSafe for FrameCache<Value, Computer>
where Computer: UnwindSafe, Value: UnwindSafe,

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> Downcast for T
where T: Any,

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fn into_any(self: Box<T>) -> Box<dyn Any>

Converts Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>, which can then be downcast into Box<dyn ConcreteType> where ConcreteType implements Trait.
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fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>

Converts Rc<Trait> (where Trait: Downcast) to Rc<Any>, which can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.
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fn as_any(&self) -> &(dyn Any + 'static)

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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Converts &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.
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impl<T> Downcast for T
where T: Any,

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fn into_any(self: Box<T>) -> Box<dyn Any>

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait.
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fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.
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fn as_any(&self) -> &(dyn Any + 'static)

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.
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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.
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where T: Any + Send,

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Converts Box<Trait> (where Trait: DowncastSend) to Box<dyn Any + Send>, which can then be downcast into Box<ConcreteType> where ConcreteType implements Trait.
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impl<T> DowncastSync for T
where T: Any + Send + Sync,

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fn into_any_sync(self: Box<T>) -> Box<dyn Any + Sync + Send>

Converts Box<Trait> (where Trait: DowncastSync) to Box<dyn Any + Send + Sync>, which can then be downcast into Box<ConcreteType> where ConcreteType implements Trait.
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Converts Arc<Trait> (where Trait: DowncastSync) to Arc<Any>, which can then be downcast into Arc<ConcreteType> where ConcreteType implements Trait.
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impl<T> DowncastSync for T
where T: Any + Send + Sync,

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fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Sync + Send>

Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait.
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