Trait rt_format::map::Map[−][src]

pub trait Map<Q, V> where
    Q: Hash + Eq + ?Sized, {
    fn get(&self, key: &Q) -> Option<&V>;
}

Expand description

A type that associates a value with a key.

Required methods

fn get(&self, key: &Q) -> Option<&V>

Returns a reference to the value associated with the given key, if any.

Implementations on Foreign Types

impl<K, Q, V> Map<Q, V> for HashMap<K, V> where
Q: Hash + Eq + ?Sized,
K: Borrow<Q> + Hash + Eq,

fn get(&self, key: &Q) -> Option<&V>

impl<K, Q, V> Map<Q, V> for HashMap<K, &V> where
Q: Hash + Eq + ?Sized,
K: Borrow<Q> + Hash + Eq,

fn get(&self, key: &Q) -> Option<&V>

Implementors

impl<Q, V> Map<Q, V> for NoMap where
Q: Hash + Eq + ?Sized,