Struct Ref

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

Implementations

impl<'a, K: Eq + Hash, V> Ref<'a, K, V>

pub fn key(&self) -> &K

pub fn value(&self) -> &V

pub fn pair(&self) -> (&K, &V)

pub fn map<F, T>(self, f: F) -> MappedRef<'a, K, V, T>

where F: FnOnce(&V) -> &T,

pub fn try_map<F, T>(self, f: F) -> Result<MappedRef<'a, K, V, T>, Self>

where F: FnOnce(&V) -> Option<&T>,

Trait Implementations

impl<'a, K: Eq + Hash + Debug, V: Debug> Debug for Ref<'a, K, V>

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

Formats the value using the given formatter.

impl<'a, K: Eq + Hash, V> Deref for Ref<'a, K, V>

type Target = V

The resulting type after dereferencing.

fn deref(&self) -> &V

Dereferences the value.

impl<'a, K: Eq + Hash + Sync, V: Sync> Send for Ref<'a, K, V>

impl<'a, K: Eq + Hash + Sync, V: Sync> Sync for Ref<'a, K, V>

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 24 bytes