Assuming you want to do things with the record later, why not just
create it in the let binding

(let [foo (->car 1982 "Mercedes")]
  ...)

or

(let [foo (car. 1982 "Mercedes")]
  ...)

or even

(let [foo (map->car {:year 1982 :manufacturer "Mercedes"})]
  ...)

or if you must

(let [foo #user.car{:year 1982 :manufacturer "Mercedes"}]
  ...)

Cheers,

Aaron Bedra
--
Clojure/core
http://clojure.com

On 10/06/2011 01:27 PM, Razvan Rotaru wrote:
> Hi,
>
> I want to instantiate a record, but having the record type as value at
> runtime.
>
> Example:
> (defrecord car [year manufacturere])
> (defrecord bike [year manufacturere])
> (defrecord boat [year manufacturer])
>
> I want to do (new stuff 1982 "Mercedes"), but having the record type
> kept in the variable "stuff". Something like:
>
> (let [stuff car]
>   (new stuff 1982 "Mercedes"))
>
> (let [stuff bike]
>   (new stuff 1990 "Harley Davidson"))
>
> Obviously new does not work. I'm gratefull for suggestions of how to
> do it best.
>
> Thanks,
> Razvan
>

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