Enum hashlink::linked_hash_map::Entry

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pub enum Entry<'a, K, V, S> {
    Occupied(OccupiedEntry<'a, K, V, S>),
    Vacant(VacantEntry<'a, K, V, S>),
}

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Occupied(OccupiedEntry<'a, K, V, S>)

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Vacant(VacantEntry<'a, K, V, S>)

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impl<'a, K, V, S> Entry<'a, K, V, S>

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pub fn or_insert(self, default: V) -> &'a mut V
where K: Hash, S: BuildHasher,

If this entry is vacant, inserts a new entry with the given value and returns a reference to it.

If this entry is occupied, this method moves the occupied entry to the back of the internal linked list and returns a reference to the existing value.

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pub fn or_insert_with<F: FnOnce() -> V>(self, default: F) -> &'a mut V
where K: Hash, S: BuildHasher,

Similar to Entry::or_insert, but accepts a function to construct a new value if this entry is vacant.

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pub fn key(&self) -> &K

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pub fn and_modify<F>(self, f: F) -> Self
where F: FnOnce(&mut V),

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impl<K: Debug, V: Debug, S> Debug for Entry<'_, K, V, S>

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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, K, V, S> Freeze for Entry<'a, K, V, S>
where K: Freeze,

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impl<'a, K, V, S> RefUnwindSafe for Entry<'a, K, V, S>

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impl<'a, K, V, S> Send for Entry<'a, K, V, S>
where K: Send, V: Send, S: Send,

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impl<'a, K, V, S> Sync for Entry<'a, K, V, S>
where K: Sync, V: Sync, S: Sync,

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impl<'a, K, V, S> Unpin for Entry<'a, K, V, S>
where K: Unpin,

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impl<'a, K, V, S> !UnwindSafe for Entry<'a, K, V, S>

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> 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.