Struct Writeable

pub struct Writeable<'a, K, V, S> { /* private fields */ }

RAII structure used to release the exclusive write access, when dropped.

Implementations

impl<K: Eq + Hash, V, S: BuildHasher> Writeable<'_, K, V, S>

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

Returns a reference to the value corresponding to the key.

pub fn get_key_value(&self) -> Option<(&K, &V)>

Returns the key-value pair corresponding to the supplied key.

pub fn contains_key(&self) -> bool

Returns true if the map contains a value for the specified key.

pub fn get_mut(&mut self) -> Option<&mut V>

Returns a mutable reference to the value corresponding to the key.

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

Inserts a key-value pair into the map.

If the map did not have this key present, None is returned.

If the map did have this key present, the value is updated, and the old value is returned. The key is not updated, though; this matters for types that can be == without being identical.

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

Removes a key from the map, returning the value at the key if the key was previously in the map.

pub fn entry(&mut self) -> Entry<'_, K, V>

where K: Clone,

Gets the given key’s corresponding entry in the map for in-place manipulation.

pub fn remove_entry(&mut self) -> Option<(K, V)>

Removes a key from the map, returning the stored key and value if the key was previously in the map.

Trait Implementations

impl<'a, K: Debug, V: Debug, S: Debug> Debug for Writeable<'a, K, V, S>

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

Formats the value using the given formatter.