defrecord - CompilerException to referring record defined at other namespace
I have records defined at datatypes.clj:
```clojure
(ns defrecord-example1.datatypes)
(defrecord Record1 [f1])
(defrecord Record2 [f1 f2 f3])
;; this is working at repl
(def m-inside1
{Record1
(fn [] ({:a "A"}))
Record2
(fn [] ({:n "B"}))})
And using at core.clj :
```clojure
(ns defrecord-example1.core
(:require
[defrecord-example1.datatypes :as dt]))
```
;; error at repl
;; CompilerException java.lang.RuntimeException: No such var: dt/Record1,
compiling:(defrecord_example1\core.clj:7:1)
(def m-in-core1
{dt/Record1
(fn [] ({:a "A"}))
dt/Record2
(fn [] ({:n "B"}))})
```
Any one can help on this ?
My project.clj:
``` clojure
(defproject defrecord-example1 "0.1.0-SNAPSHOT"
:description "FIXME: write description"
:url "http://example.com/FIXME";
:license {:name "Eclipse Public License"
:url "http://www.eclipse.org/legal/epl-v10.html"}
:dependencies [[org.clojure/clojure "1.6.0"]])
```
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Re: defrecord - CompilerException to referring record defined at other namespace
Yes , it is.
Is it because that / is accessing the 'static' function/field ? so at
core.clj:
we can only have there constructors as follow ?
dt/->Record1
dt/->Record2
dt/map->Record1
dt/map->Record2
On Wednesday, September 10, 2014 10:21:45 PM UTC+8, Alex Miller wrote:
>
> Is datatypes.clj at src/defrecord_example1/datatypes.clj ? (note _, not -
> in directory name)
>
>
> On Wednesday, September 10, 2014 6:01:25 AM UTC-5, Bin Li wrote:
>>
>> I have records defined at datatypes.clj:
>> ```clojure
>> (ns defrecord-example1.datatypes)
>>
>> (defrecord Record1 [f1])
>>
>> (defrecord Record2 [f1 f2 f3])
>>
>> ;; this is working at repl
>> (def m-inside1
>> {Record1
>> (fn [] ({:a "A"}))
>> Record2
>> (fn [] ({:n "B"}))})
>>
>> And using at core.clj :
>> ```clojure
>> (ns defrecord-example1.core
>> (:require
>> [defrecord-example1.datatypes :as dt]))
>>
>> ```
>>
>> ;; error at repl
>> ;; CompilerException java.lang.RuntimeException: No such var: dt/Record1,
>> compiling:(defrecord_example1\core.clj:7:1)
>> (def m-in-core1
>> {dt/Record1
>> (fn [] ({:a "A"}))
>> dt/Record2
>> (fn [] ({:n "B"}))})
>>
>> ```
>>
>> Any one can help on this ?
>> My project.clj:
>> ``` clojure
>> (defproject defrecord-example1 "0.1.0-SNAPSHOT"
>> :description "FIXME: write description"
>> :url "http://example.com/FIXME";
>> :license {:name "Eclipse Public License"
>> :url "http://www.eclipse.org/legal/epl-v10.html"}
>> :dependencies [[org.clojure/clojure "1.6.0"]])
>>
>> ```
>>
>>
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Re: defrecord - CompilerException to referring record defined at other namespace
Thanks a lot , Alex.
So in order to working with defrecords , we have to use fully qualified
name , or we can import them.
But the :require is needed before I can import the 'defrecord' classes..
[... :refer :all] will not import the classes..
On Thursday, September 11, 2014 10:46:17 PM UTC+8, Alex Miller wrote:
>
> Yeah, dt/Record1 is not a thing that is referenceable.
>
> dt/->Record1 is a constructor function
> defrecord_example1.datatypes.Record1 is a class
>
> You can't use the ns alias dt to shorten the name of the class (those are
> different naming contexts).
>
>
> On Wednesday, September 10, 2014 8:44:18 PM UTC-5, Bin Li wrote:
>>
>> Yes , it is.
>>
>> Is it because that / is accessing the 'static' function/field ? so at
>> core.clj:
>>
>> we can only have there constructors as follow ?
>>
>> dt/->Record1
>> dt/->Record2
>> dt/map->Record1
>> dt/map->Record2
>>
>> On Wednesday, September 10, 2014 10:21:45 PM UTC+8, Alex Miller wrote:
>>>
>>> Is datatypes.clj at src/defrecord_example1/datatypes.clj ? (note _, not
>>> - in directory name)
>>>
>>>
>>> On Wednesday, September 10, 2014 6:01:25 AM UTC-5, Bin Li wrote:
>>>>
>>>> I have records defined at datatypes.clj:
>>>> ```clojure
>>>> (ns defrecord-example1.datatypes)
>>>>
>>>> (defrecord Record1 [f1])
>>>>
>>>> (defrecord Record2 [f1 f2 f3])
>>>>
>>>> ;; this is working at repl
>>>> (def m-inside1
>>>> {Record1
>>>> (fn [] ({:a "A"}))
>>>> Record2
>>>> (fn [] ({:n "B"}))})
>>>>
>>>> And using at core.clj :
>>>> ```clojure
>>>> (ns defrecord-example1.core
>>>> (:require
>>>> [defrecord-example1.datatypes :as dt]))
>>>>
>>>> ```
>>>>
>>>> ;; error at repl
>>>> ;; CompilerException java.lang.RuntimeException: No such var:
>>>> dt/Record1, compiling:(defrecord_example1\core.clj:7:1)
>>>> (def m-in-core1
>>>> {dt/Record1
>>>> (fn [] ({:a "A"}))
>>>> dt/Record2
>>>> (fn [] ({:n "B"}))})
>>>>
>>>> ```
>>>>
>>>> Any one can help on this ?
>>>> My project.clj:
>>>> ``` clojure
>>>> (defproject defrecord-example1 "0.1.0-SNAPSHOT"
>>>> :description "FIXME: write description"
>>>> :url "http://example.com/FIXME";
>>>> :license {:name "Eclipse Public License"
>>>> :url "http://www.eclipse.org/legal/epl-v10.html"}
>>>> :dependencies [[org.clojure/clojure "1.6.0"]])
>>>>
>>>> ```
>>>>
>>>>
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How to read a transit string from client side (transit-cljs) on server side (tansit-clj)
Hi Guys,
I was playing around the transit library recently , that is what I did:
On client side , which using tansit-cljs (*clojrescript*) :
(def w (t/writer :json))
(.send xhr
url
"POST"
(transit/write w *{:test :test-value}*)
#js {"Content-Type" "application/transit+json"})
And from server side , using *clojure *:
I got the string like: *["^ ","~:test","~:test-value"]*
The question is how can I read this transit'ed string back to a map ?
Thanks in advance!
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Re: How to read a transit string from client side (transit-cljs) on server side (tansit-clj)
More detail here, thanks for help~
https://groups.google.com/forum/#!msg/transit-format/c_5BuPb1R1A/_jXl3mCS-1IJ
On Thursday, September 25, 2014 9:44:23 PM UTC+8, Ashton Kemerling wrote:
>
> I think you should take a look at the transit-Clj README, it has docs and
> examples.
>
> https://github.com/cognitect/transit-clj/blob/master/README.md
>
>
> On Thu, Sep 25, 2014 at 6:56 AM, Bin Li >
> wrote:
>
>> Hi Guys,
>>
>> I was playing around the transit library recently , that is what I did:
>>
>> On client side , which using tansit-cljs (*clojrescript*) :
>>
>> (def w (t/writer :json))
>>
>> (.send xhr
>> url
>> "POST"
>> (transit/write w *{:test :test-value}*)
>> #js {"Content-Type" "application/transit+json"})
>>
>>
>> And from server side , using *clojure *:
>> I got the string like: *["^ ","~:test","~:test-value"]*
>>
>> The question is how can I read this transit'ed string back to a map ?
>>
>> Thanks in advance!
>>
>> --
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>>
>> Note that posts from new members are moderated - please be patient with
>> your first post.
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>
>
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