Seems like that's the reasonable place to check it, otherwise you're forced 
into an ordering for your specs and cannot write recursive strict map specs.

On Wednesday, October 4, 2017 at 8:59:59 AM UTC-7, Yuri Govorushchenko 
wrote:
>
> Thanks. This approach is also different from the macro because it will 
> check specs existence at the validation time, not at the s/def call.
>
> On Wednesday, October 4, 2017 at 4:18:16 PM UTC+3, Moritz Ulrich wrote:
>>
>> Yuri Govorushchenko <yuri....@gmail.com> writes: 
>>
>> > Thank you the pointers! So far I ended up with writing a small `map` 
>> macro 
>> > which is similar to `s/keys` but checks that keys are already in the 
>> > registry: 
>> https://gist.github.com/metametadata/5f600e20e0e9b0ce6bce146c6db429e2 
>>
>> Note that you can simply combine a custom predicate and `s/keys` in 
>> clojure.spec to verify that all keys in a given map have a underlying 
>> spec: 
>>
>> ``` 
>> (s/def ::whatever (s/and (s/keys ...) 
>>                          #(every? keyword? (keys %)) 
>>                          #(every? (comp boolean s/get-spec) (keys %)) ) 
>> ``` 
>>
>

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