Struct egui::util::cache::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) -> Self

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pub fn evice_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: 'static + Send + Sync, Computer: 'static + Send + Sync> CacheTrait for FrameCache<Value, Computer>

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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

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

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fn default() -> Self

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> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.