polars_utils::cache

Struct FastFixedCache

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pub struct FastFixedCache<K, V> { /* private fields */ }

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impl<K: Hash + Eq, V> FastFixedCache<K, V>

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pub fn new(n: usize) -> Self

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pub fn get<Q: Hash + Eq + ?Sized>(&self, key: &Q) -> Option<&V>
where K: Borrow<Q>,

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pub fn get_mut<Q: Hash + Eq + ?Sized>(&mut self, key: &Q) -> Option<&mut V>
where K: Borrow<Q>,

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pub fn insert(&mut self, key: K, value: V) -> &mut V

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pub fn get_or_insert_with<Q, F>(&mut self, key: &Q, f: F) -> &mut V
where K: Borrow<Q>, Q: Hash + Eq + ToOwned<Owned = K> + ?Sized, F: FnOnce(&K) -> V,

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pub fn try_get_or_insert_with<Q, F, E>( &mut self, key: &Q, f: F, ) -> Result<&mut V, E>
where K: Borrow<Q>, Q: Hash + Eq + ToOwned<Owned = K> + ?Sized, F: FnOnce(&K) -> Result<V, E>,

Trait Implementations§

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impl<K: Clone, V: Clone> Clone for FastFixedCache<K, V>

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fn clone(&self) -> FastFixedCache<K, V>

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<K: Hash + Eq, V> Default for FastFixedCache<K, V>

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fn default() -> Self

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

Auto Trait Implementations§

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impl<K, V> !Freeze for FastFixedCache<K, V>

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impl<K, V> !RefUnwindSafe for FastFixedCache<K, V>

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impl<K, V> Send for FastFixedCache<K, V>
where K: Send, V: Send,

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impl<K, V> !Sync for FastFixedCache<K, V>

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impl<K, V> Unpin for FastFixedCache<K, V>
where K: Unpin, V: Unpin,

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impl<K, V> UnwindSafe for FastFixedCache<K, V>
where K: UnwindSafe, V: 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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dst: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. 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> IntoEither for T

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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<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> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. 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.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V