arc_swap::cache

Struct MapCache

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pub struct MapCache<A, T, F> { /* private fields */ }
Expand description

An implementation of a cache with a projection into the accessed value.

This is the implementation structure for Cache::map. It can’t be created directly and it should be used through the Access trait.

Trait Implementations§

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impl<A, T, S, F, U> Access<U> for MapCache<A, T, F>
where A: Deref<Target = ArcSwapAny<T, S>>, T: RefCnt, S: Strategy<T>, F: FnMut(&T) -> &U,

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fn load(&mut self) -> &U

Loads the value from cache. Read more
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impl<A: Clone, T: Clone, F: Clone> Clone for MapCache<A, T, F>

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fn clone(&self) -> MapCache<A, T, F>

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<A: Debug, T: Debug, F: Debug> Debug for MapCache<A, T, F>

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl<A, T, F> Freeze for MapCache<A, T, F>
where F: Freeze, A: Freeze, T: Freeze,

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impl<A, T, F> RefUnwindSafe for MapCache<A, T, F>
where F: RefUnwindSafe, A: RefUnwindSafe, T: RefUnwindSafe,

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impl<A, T, F> Send for MapCache<A, T, F>
where F: Send, A: Send, T: Send,

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impl<A, T, F> Sync for MapCache<A, T, F>
where F: Sync, A: Sync, T: Sync,

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impl<A, T, F> Unpin for MapCache<A, T, F>
where F: Unpin, A: Unpin, T: Unpin,

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impl<A, T, F> UnwindSafe for MapCache<A, T, F>
where F: UnwindSafe, A: UnwindSafe, T: 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 T)

🔬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> 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.