PERsistent MEmoisation.

This is a damn naive implementation, so do not ever trust, please.

Please tell me if exists.

If you want in-memory memoization the libraries below may help you.

• function-cache
• fare-memoization
• defmemo

* (perme:memoise your-function-name)

* (perme:forget your-function-name)

PERME depends on cl-store to store object. And cl-store says

not all yet

So the objects that cl-store can not serialize are can not memoized by perme too.

PERME uses sxhash to make pathname that holds the memoized results.

CLHS says

(let ((r (make-random-state))) (= (sxhash r) (sxhash (make-random-state r)))) => implementation-dependent

So conflict may occur.

MIT