memo-swap!

The 2-arity version takes a core.memo-populated function and a map and replaces the memoization cache with the supplied map. Use `memo-reset!` instead for replacing the cache as this 2-arity version of `memo-swap!` should be considered deprecated. The 3+-arity version takes a core.memo-populated function and arguments similar to what you would pass to `clojure.core/swap!` and performs a `swap!` on the underlying cache. In order to satisfy core.memoize's world view, the assumption is that you will generally be calling it like: (def id (memo identity)) (memo-swap! id clojure.core.cache/miss [13] :omg) (id 13) ;=> :omg You'll nearly always use `clojure.core.cache/miss` for this operation but you could pass any function that would work on an immutable cache, such as `evict` or `assoc` etc. Be aware that `memo-swap!` assumes it can wrap each of the `results` values in a `delay` so that items conform to `clojure.core.memoize`'s world view.