closure_cacher

This library offer caching for a user provided closure. There are two types of cachers inside:

• Cacher which copies the user input and takes ownership of that copy
• RefCacher which references user input and thus is bound to that input but doesn't involve copy

Usage

use closure_cacher::Cacher;

let mut cacher = Cacher::new(|x| x + 1)
println("{}", cacher.get(&4)); // outputs 5

use closure_cacher::RefCacher;
let four = 4;
let mut cacher = RefCacher::new(|x| x + 1)
println("{}", cacher.get(&four));

Contributions

If you have any feature request or enhancement in mind. I would love to add it :)

Disclaimer

This is not a very critical library i.e. it does one job in a very standard way.

You could usually just write it again.

I used it as part of my pass through the rust book and decided to go ahead and share so any feedback is appreciated.

lib.rs:

Closure Cacher abstracts memoization on provided closure by storing its data in a hashmap and returning references to its output