Trait containers_rs::CopyMap

pub trait CopyMap<K, V, E = (K, V)>: Container<E> where
    K: Copy + Eq, {
    fn get(&self, key: K) -> Option<&E>;
    fn get_mut(&mut self, key: K) -> Option<&mut E>;
    fn insert(&mut self, k: K, v: V) -> Option<V>;
}

Trait for a container indexed by a value that implements Copy and Eq.

Required methods

fn get(&self, key: K) -> Option<&E>

Get a value from this Map. Takes a key by reference and returns a reference to the corresponding data, or None if none exists.

fn get_mut(&mut self, key: K) -> Option<&mut E>

Returns a mutable reference to an object stored in this container based on the key given, or None if the key does not exist.

fn insert(&mut self, k: K, v: V) -> Option<V>

Adds a new item into this container with the associated key, and returns the previous value associated with that key, if it existed.

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Implementors

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