Struct Memo 

pub struct Memo<A: Hash + Eq + Clone, B: Clone> { /* private fields */ }

A memoized function.

Wraps a function f : A → B such that each call is cached by key.

Implementations

impl<A: Hash + Eq + Clone, B: Clone> Memo<A, B>

pub fn new<F: Fn(&A) -> B + 'static>(f: F) -> Self

Create a new memoized function.

pub fn call(&mut self, arg: &A) -> &B

Call the memoized function, caching the result.

pub fn clear_cache(&mut self)

Clear the cache.

pub fn cache_size(&self) -> usize

Number of cached entries.