Struct testclourse::Cacher

pub struct Cacher<T, P, O> where
    T: Fn(P) -> O,
    P: Eq + Hash + Copy,
    O: Copy,  {
    pub caculation: T,
    pub value: HashMap<P, O>,
}

Fields

caculation: T

value: HashMap<P, O>

Methods

impl<T, P, O> Cacher<T, P, O> where     T: Fn(P) -> O,     P: Eq + Hash + Copy,     O: Copy,

let mut c = testclourse::Cacher::new(|a| a);
let v = c.value(2);
assert_eq!(v, 2);
let mut c2 = testclourse::Cacher::new(|mystring: &str| mystring.len());
let v2 = c2.value("abcd");
assert_eq!(v, 2);

pub fn new(caculation: T) -> Cacher<T, P, O>

pub fn value(&mut self, arg: P) -> O