On Sat, Jun 4, 2016 at 1:45 AM, James Reeves <ja...@booleanknot.com> wrote:
> You can do it with a macro.
>
> - James
>
> On 3 June 2016 at 22:22, Steven Zhou <zzuoh...@gmail.com> wrote:
>
>> Is it possible to write down a function do the following?
>>
>> (defn foo
>> [input]
>> ....
>> )
>>
>> (def x "Hello")
>> (def y "Clojure")
>>
>> (foo [x y])
>> => {:x "Hello" :y "Clojure"}
>>
>
This seems to do what you want:
(defmacro foo [vars]
(let [keys_ (mapv keyword vars)]
`(zipmap ~keys_ ~vars)))
Note the difference between ~(mapv keyword vars) & ~vars. The former maps
(keyword) over a vector of symbols, then resolves their value (which is
themselves). The latter resolves the vector of symbols directly, each
element in turn gets resolved to their respective definitions.
If you rewrite this to use a (foo [& vars] ...) and be called as (foo x y),
I think it would be easier to see what's happening.
>
>>
>> Regards,
>> -Steven
>>
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Kind Regards,
Atamert Ölçgen
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www.muhuk.com
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