Struct MappedRef

pub struct MappedRef<'a, K, V, T, S = RandomState> { /* private fields */ }

Implementations

impl<'a, K: Eq + Hash, V, T, S: BuildHasher> MappedRef<'a, K, V, T, S>

pub fn key(&self) -> &K

pub fn value(&self) -> &T

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

pub fn map<F, T2>(self, f: F) -> MappedRef<'a, K, V, T2, S>

where F: FnOnce(&T) -> &T2,

pub fn try_map<F, T2>(self, f: F) -> Result<MappedRef<'a, K, V, T2, S>, Self>

where F: FnOnce(&T) -> Option<&T2>,

Trait Implementations

impl<'a, K: Eq + Hash, V, T: AsRef<TDeref>, TDeref: ?Sized> AsRef<TDeref> for MappedRef<'a, K, V, T>

fn as_ref(&self) -> &TDeref

Converts this type into a shared reference of the (usually inferred) input type.

impl<'a, K: Eq + Hash + Debug, V, T: Debug, S: BuildHasher> Debug for MappedRef<'a, K, V, T, S>

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

Formats the value using the given formatter.

impl<'a, K: Eq + Hash, V, T, S: BuildHasher> Deref for MappedRef<'a, K, V, T, S>

type Target = T

The resulting type after dereferencing.

fn deref(&self) -> &T

Dereferences the value.

impl<'a, K: Eq + Hash, V, T: Display> Display for MappedRef<'a, K, V, T>

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

Formats the value using the given formatter.