@ajmagnifico something to consider, Spec also recommends flat maps:

{:cnx-info.source.db/host :env/DB_HOST :cnx-info.source.db/port :env/DB_PORT :cnx-info.dst.db/host "localhost" ... :job/dir "some-directory}

@tbaldridge interesting, is that implicit in its design, or did I miss that recommendation somewhere?

How would you spec a map of ints to maps, eg

{1 {:foo "bar"} 2 {:foo "qux"}}

https://clojure.github.io/clojure/branch-master/clojure.spec-api.html#clojure.spec/map-of

@taylor Thanks!

(s/map-of int? map?) but you could get more specific (s/map-of int? ::some-complex-keys-spec)

I did the second 🙂

thanks @tbaldridge. That’s a really good idea, and it will actually solve a couple of other problems for me as well. I didn’t recall that keyword namespaces don’t actually need to correspond to real namespaces, even though that’s exactly what taylor told me! I guess I just needed to see it concretely for it to click.

I guess the only thing you miss out on when you make up namespaces is use of the :: syntax

but in my case, that’s a small price to pay

I'm trying to spec a variadic function that has a gnarly java-esque method signature like (f str int) (f str int bool) (f str int bool int) . I've tried to model this w/ s/cat but I'm having trouble building a spec that says (f str int int) is invalid but (f str int bool int) is valid. Example:

(s/def ::foo (s/cat :a string? :b int? :c (s/nilable boolean?) :d (s/nilable int?)))

this works if args are supplied as nil. but I can't figure out how to also support the smaller arg list. (s/valid? ::foo ["a" 1]) is false

any pointers?

give https://clojuredocs.org/clojure.spec/alt a try

ok, will do! thanks

like (s/def ::foo (s/alt :two-arg-version (s/cat :a string? :b int) :three-arg-version (s/cat :a string? :b int? :c boolean?) ...etc)

aha!