FrameCache

shura::gui::util::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 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.

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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<T> for T

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fn downcast(&self) -> &T

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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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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 + Sync,

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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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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<S> FromSample<S> for S

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fn from_sample_(s: S) -> S

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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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fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<F, T> IntoSample<T> for F
where T: FromSample<F>,

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fn into_sample(self) -> T

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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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Should always be Self
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The inverse inclusion map: attempts to construct self from the equivalent element of its superset. Read more
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Checks if self is actually part of its subset T (and can be converted to it).
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Use with care! Same as self.to_subset but without any property checks. Always succeeds.
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