pub struct ExpiringMap<K, V> {
    limit: Duration,
    map: BTreeMap<K, (V, Instant)>,
    dq: VecDeque<(K, Instant)>,
}

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§limit: Duration§map: BTreeMap<K, (V, Instant)>§dq: VecDeque<(K, Instant)>

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impl<K, V> ExpiringMap<K, V>
where K: Clone + Ord,

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pub fn new(limit: Duration) -> Self

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fn cleanup(&mut self, now: &Instant)

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pub fn get_or_insert_with<F: FnOnce() -> Result<V, E>, E>( &mut self, key: &K, f: F ) -> Result<&V, E>

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pub fn get_mut(&mut self, key: &K) -> Option<&mut V>

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pub fn remove(&mut self, key: &K)

Auto Trait Implementations§

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impl<K, V> RefUnwindSafe for ExpiringMap<K, V>

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

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impl<K, V> Sync for ExpiringMap<K, V>
where K: Sync, V: Sync,

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

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impl<K, V> UnwindSafe for ExpiringMap<K, V>

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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 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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fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>

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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impl<T> DowncastSync for T
where T: Any + Send + Sync,

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fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Send + Sync>

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<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, 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