Struct MappedRef

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

Implementations

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

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>

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

pub fn try_map<F, T2>(self, f: F) -> Result<MappedRef<'a, K, V, T2>, 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> Debug for MappedRef<'a, K, V, T>

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

Formats the value using the given formatter.

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

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.

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