Enum GetOrInsertResult

pub enum GetOrInsertResult<'a, K, V> {
    Inserted(&'a mut V),
    Existed(&'a mut V, K),
}

The result of LRUCache::get_or_insert.

If inserted, it returns a reference to the newly inserted value. If the key already existed, it returns a reference to the existing value, and the provided key.

Variants

Inserted(&'a mut V)

Element was inserted, key and value were consumed.

Existed(&'a mut V, K)

Element already existed at the given key, so a reference to the existing value is returned, along with the given key.

Implementations

impl<'a, K, V> GetOrInsertResult<'a, K, V>

pub fn into_inner(self) -> &'a mut V

Consumes the result and returns a reference to the value.

This will drop the key if it existed.

Trait Implementations

impl<'a, K: Debug, V: Debug> Debug for GetOrInsertResult<'a, K, V>

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

Formats the value using the given formatter.

impl<K, V> Deref for GetOrInsertResult<'_, K, V>

type Target = V

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl<K, V> DerefMut for GetOrInsertResult<'_, K, V>

fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.

impl<'a, K: PartialEq, V: PartialEq> PartialEq for GetOrInsertResult<'a, K, V>

fn eq(&self, other: &GetOrInsertResult<'a, K, V>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'a, K: Eq, V: Eq> Eq for GetOrInsertResult<'a, K, V>

impl<'a, K, V> StructuralPartialEq for GetOrInsertResult<'a, K, V>