cached

simple rust caching macro

Usage

Easy to use caching inspired by python decorators. See examples for examples of using a specific cache-store.

```rust

[macro_use] extern crate cached;

// cached! macro requires the lazy_static! macro

[macrouse] extern crate lazystatic;

cached!{ FIB >> fib(n: u32) -> u32 = { if n == 0 || n == 1 { return n; } fib(n-1) + fib(n-2) }}

pub fn main() { fib(20); fib(20); { let cache = FIB.lock().unwrap(); println!("hits: {:?}", cache.cachehits()); println!("misses: {:?}", cache.cachemisses()); // make sure the cache-lock is dropped } println!("fib(20) = {}", fib(20)); } ```