clojure.spec and generic map with couple of special keys

[Nikita Prokopov]

Imagine I have a generic keyword => string map with a special key that stores a number:

{ ::count 7

  :x "x"

  :y "y"

  :z "z"

  ... }

Both cases are easy to validate on their own:

(s/def ::count number?)

(s/conform (s/keys ::count) { ::count 7 })

(s/conform (s/map-of keyword? string?) { :x "x", :y "y", :z "z" })

But how do I write a spec to validate them when they are in a single map?

I tried to use s/every but then another problem popped up: how do I reference or check another spec from inside s/every predicate? In my case, values are more complex than string? and have their own spec.

Please help

Nikita

[Sam Estep]

I ran into this same issue while trying to spec Clojure's destructuring language. I asked a question about this on Stack Overflow: http://stackoverflow.com/q/38151446/5044950

[gsnewmark]

If I'm not mistaken, similar issue was recently discussed on the Clojurians Slack (direct link - https://clojurians.slack.com/archives/clojure-spec/p1467382200001722 , archive link - https://clojurians-log.clojureverse.org/clojure-spec/2016-07-01.html - discussion starts from @ghadi's post at 17:10:00). 

The basic idea is to validate namespaced keywords first, remove them using the conformer, and then validate rest of the keys.

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[Nikita Prokopov]

That’s what I needed! Thanks

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