michie 0.2.1

An attribute macro that adds memoization to a function (pronounced /'mikɪ/)
Documentation 
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#![doc = include_str!("../README.md")]

use std::{
    collections::{BTreeMap, HashMap},
    hash::Hash,
};

/// See [crate level documentation](crate).
pub use michie_macro::memoized;

pub trait MemoizationStore<K, V> {
    fn insert(&mut self, key: K, value: V);
    fn get(&self, key: &K) -> Option<&V>;
}

impl<K, V> MemoizationStore<K, V> for HashMap<K, V>
where
    K: Eq + Hash,
{
    fn insert(&mut self, key: K, value: V) {
        HashMap::insert(self, key, value);
    }
    fn get(&self, key: &K) -> Option<&V> {
        HashMap::get(self, key)
    }
}

impl<K, V> MemoizationStore<K, V> for BTreeMap<K, V>
where
    K: Ord,
{
    fn insert(&mut self, key: K, value: V) {
        BTreeMap::insert(self, key, value);
    }
    fn get(&self, key: &K) -> Option<&V> {
        BTreeMap::get(self, key)
    }
}