Do you refer to this section?
"When regex ops are combined, they describe a single sequence. If you need
to include a nested sequential collection, you must use an explicit call to
spec to start a new nested regex context. For example to describe a
sequence like [:names ["a" "b"] :nums [1 2 3]], you need nested regular
expressions to describe the inner sequential data:"
If so, I did read it, but did not connect it inner seqs, but instead always
thought it was about regexes, which in my head is something totally
different than function definitions and their arguments.
Anyway, I am trying to provide useful feedback here, you all have done a
great job!
Thanks,
Sven
Am Donnerstag, 26. Mai 2016 14:53:13 UTC+2 schrieb Alex Miller:
>
> There is an example like this in the Sequence section and a bit on this
> issue in particular.
>
> On Thursday, May 26, 2016 at 7:08:44 AM UTC-5, Sven Richter wrote:
>>
>> Ah thanks, that worked, not quite as I expected. Up until this point it
>> was pretty straightforward for me, thats been my fist bummer.
>>
>> Do you have an example for this in the guide? I did not fully read it,
>> but I think I scrolled through everything that used fdefs.
>>
>> Best Regards,
>> Sven
>>
>> Am Donnerstag, 26. Mai 2016 12:21:15 UTC+2 schrieb Alex Miller:
>>>
>>> It's a little tricky but you want:
>>>
>>> (s/fdef remove-autoinc-columns :args (s/cat :cols (s/spec ::columns)))
>>>
>>> Here the args data is ([{:foo "some_t"}]) and while you have an s/cat
>>> for :args and an s/cat in ::columns, those will be combined into the same
>>> regex so that's basically the same thing as ::columns. You need to force a
>>> new level of regex context and the s/spec will do that.
>>>
>>> On Thursday, May 26, 2016 at 4:32:52 AM UTC-5, Sven Richter wrote:
>>>>
>>>> Hi,
>>>>
>>>> I already asked this in the spec channel on slack, but got no response
>>>> yet.
>>>>
>>>> I have this simple spec definition:
>>>>
>>>> (s/def ::foo string?)
>>>>
>>>>
>>>>
>>>> (s/def ::column (s/keys :req-un [::foo]))
>>>>
>>>>
>>>>
>>>> (s/def ::columns (s/cat :col (s/* (s/spec ::column))))
>>>>
>>>> ;(s/def ::columns (s/cat :col (s/* ::column)))
>>>>
>>>>
>>>>
>>>> (defn remove-autoinc-columns [cols]
>>>>
>>>> (vec (remove #(= true (:autoinc %)) cols)))
>>>>
>>>>
>>>>
>>>> (s/fdef remove-autoinc-columns :args (s/cat :cols ::columns)
>>>>
>>>> :ret ::columns)
>>>>
>>>>
>>>>
>>>>
>>>> $(remove-autoinc-columns [{:foo "some_t"}])
>>>>
>>>> ===> ExceptionInfo Call to
>>>> #'de.sveri.clospcrud.s-play/remove-autoinc-columns did not conform to spec:
>>>>
>>>> At: [:args] val: ([{:foo "some_t"}]) fails predicate: (cat :cols
>>>> :de.sveri.clospcrud.s-play/columns), Extra input
>>>>
>>>> :clojure.spec/args ([{:foo "some_t"}])
>>>>
>>>> clojure.core/ex-info (core.clj:4617)
>>>>
>>>>
>>>> On the other hand, running this:
>>>> (s/conform ::columns [{:foo "some_t"}])
>>>> => {:col [{:foo "some_t"}]}
>>>> works.
>>>>
>>>> So something is broken within the fdefs argument definition.
>>>>
>>>> I dont see my mistake here, can somone else reproduce / fix this?
>>>>
>>>> Thanks,
>>>> Sven
>>>>
>>>
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