Re: am i the only one with deftype/defprotocol problems?
ah! i think i was screwing up with git :-( (doc deftype) looks right now. On Mon, Jan 4, 2010 at 10:36 AM, Raoul Duke wrote: > thanks Konrad & Jonas. i figured/hoped it was something stupid simple. > (for some reason i don't know where to find the latest syntax > documented.) > -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: am i the only one with deftype/defprotocol problems?
thanks Konrad & Jonas. i figured/hoped it was something stupid simple. (for some reason i don't know where to find the latest syntax documented.) -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: am i the only one with deftype/defprotocol problems?
I think you simply need to get the syntax right. The following works
fine for me:
user=> (defprotocol p (foo [this]))
p
user=> (deftype a [f] p (foo []))
#'user/a
user=> (foo (a nil))
nil
user=> (deftype a [f] :as this p (foo [] [this]))
#'user/a
user=> (foo (a nil))
[#:a{:f nil}]
On Mon, Jan 4, 2010 at 6:37 AM, Raoul Duke wrote:
> hi,
>
> i've only heard crickets so far, am i really the only one who can't
> get this to work? help? :-} thanks. i figure i must be doing something
> dirt simple wrong?
>
> Clojure 1.1.0-new-SNAPSHOT
> user=> (defprotocol p (foo [this]))
> p
> user=> (deftype a [f] [p] (.foo [this]))
> java.lang.RuntimeException: java.lang.ClassCastException:
> clojure.lang.PersistentVector cannot be cast to clojure.lang.Symbol
> (NO_SOURCE_FILE:0)
>
> --
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> Groups "Clojure" group.
> To post to this group, send email to clojure@googlegroups.com
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Re: am i the only one with deftype/defprotocol problems?
On 4 Jan 2010, at 05:37, Raoul Duke wrote: > i've only heard crickets so far, am i really the only one who can't > get this to work? help? :-} thanks. i figure i must be doing something > dirt simple wrong? > > Clojure 1.1.0-new-SNAPSHOT > user=> (defprotocol p (foo [this])) > p > user=> (deftype a [f] [p] (.foo [this])) > java.lang.RuntimeException: java.lang.ClassCastException: > clojure.lang.PersistentVector cannot be cast to clojure.lang.Symbol > (NO_SOURCE_FILE:0) The syntax rules for deftype have changed a while ago. Try the following: (deftype a [f] :as this p (foo [])) Konrad. -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
am i the only one with deftype/defprotocol problems?
hi, i've only heard crickets so far, am i really the only one who can't get this to work? help? :-} thanks. i figure i must be doing something dirt simple wrong? Clojure 1.1.0-new-SNAPSHOT user=> (defprotocol p (foo [this])) p user=> (deftype a [f] [p] (.foo [this])) java.lang.RuntimeException: java.lang.ClassCastException: clojure.lang.PersistentVector cannot be cast to clojure.lang.Symbol (NO_SOURCE_FILE:0) -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
