it's better to use https://github.com/clojure/core.match
On Tue, Oct 25, 2011 at 11:32 AM, Ben Smith-Mannschott
<bsmith.o...@gmail.com> wrote:
> On Tue, Oct 25, 2011 at 11:20, Michael Jaaka
> <michael.ja...@googlemail.com> wrote:
>> Hi!
>> Pattern matching is fine for sequence or vector destruction.
>> Is is possible to destruct map and make pattern machting?
>> For example I would like to make constraint for to some query service.
>> It would be done as map for example: { :name "Tom" :surname "Jakarta"
>> :birthDate (Date.) } or { :personalId "12312312132" }
>> Then I would like to dispatch this Value Object:
>> (defn service
>> ([ {:keys [name surname]} ] (println "searching by personal data"))
>> ([{:keys [personalId]} ] (println "searching by id")))
>>
>> Why using map instead of specific type of VO?
>> Because I don't want to decleare types of VO which doesn't bring any value
>> to domain problem.
>> Maybe matchure or other lib already implements it?
>
> Clojure provides only destructuring, not pattern matching. (It's my
> impression that Rich is not a fan of mixing destructuring with control
> flow implied by pattern matching.)
>
> If you want pattern matching, matchure seems like just what you need.
> For your particular example, take a look at matchure's defn-match.
>
> https://github.com/dcolthorp/matchure
>
> // Ben
>
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