om.next.cache in .cljc

[petterik]

Use case:
Now that om.next is written in .cljc, we can write fullstack tests running in a single jvm with clients which very closely mimics an actual cljs client.

Expected:
I expected to be able to port my read, mutate, merge! and send! functions to .cljc, create a reconciler and run transactions against the reconciler.

Happened:
Client code was accessing om.next.cache but it's still written in .cljs, so I can't run my client code in clojure.

Since om.next was written in .cljc for server rendering, It makes sense that the current code doesn't create or use om.next.cache. I propose that we should be able to pass the :history option to the reconciler in clj to use the cache.

Patch:
petterik@8d63f7e

PS. In this patch I've included a new method on the cache, getting the latest id. I have a use case for this which I'd be happy to explain, but feel free to ignore it for now.

[swannodette]

@petterik this is a fine enhancement. Have you submitted your CA?

[petterik]

@swannodette I have not submitted my CA. I've sent you an email requesting it.

I can send a pull request with the patch linked in the original post if you still think it's good.