Struct AsyncKeyedCacheEntry

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pub struct AsyncKeyedCacheEntry<K, V>where
    K: Hash + Eq + Clone + Debug,
    V: Clone,
{ /* private fields */ }

Expand description

A locked handle to one key’s slot in an AsyncKeyedCache.

Holds the key’s lock for its lifetime (released on drop). All accessors operate on the slot for key.

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impl<K, V> AsyncKeyedCacheEntry<K, V>
where K: Hash + Eq + Clone + Debug, V: Clone,

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pub fn key(&self) -> &K

The key this entry is locked on.

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pub fn get(&self) -> Option<V>

Get a clone of the cached value for this key, if present.

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pub fn insert(&self, value: V) -> Option<V>

Insert (or replace) the cached value for this key, returning the previous value if any.

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pub fn remove(&self) -> Option<V>

Remove and return the cached value for this key, if present.

Auto Trait Implementations§

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impl<K, V> UnsafeUnpin for AsyncKeyedCacheEntry<K, V>
where K: UnsafeUnpin,

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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<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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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> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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impl<T, U> Into 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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