By the way *print-dup* is the problem, maybe you should not use it :)
Spot the difference :
user=> (binding [*print-dup* true] (prn (->Foo 1 2 3)))
#user.Foo[1, 2, 3]
user=> (binding [*print-dup* false] (prn (->Foo 1 2 3)))
#user.Foo{:a 1, :b 2, :c 3}
cheers
Le mercredi 21 août 2013 19:55:59 UTC+2, Jim foo.bar a écrit :
>
> Hi everyone,
>
> I am trying to serialise a record with edn. I think I am using all the
> good practices but I get a weird error...I am using these simple functions:
>
> (defn data->string
> "Writes the object b on a file f on disk as a string."
> [b f]
> (io!
> (with-open [w (clojure.java.io/writer f)]
> (binding [*print-dup* true
> *out* w] (prn b)))))
>
> (defn string->data
> "Read the file f back on memory safely. Contents of f should be a clojure
> data-structure."
> [f]
> (io!
> (edn/read-string (slurp f))))
>
> and I am getting this error:
> *
> **RuntimeException No dispatch macro for: =
> clojure.lang.Util.runtimeException (Util.java:219)*
>
> Out of curiosity I tried something simpler like this:
>
> Clondie24.games.chess=> (defrecord FOO [a b c])
> Clondie24.games.chess.FOO
> Clondie24.games.chess=> (ut/data->string (FOO. :a :b :C) "FOO")
> nil
> Clondie24.games.chess=> (ut/string->data "FOO")
>
> RuntimeException No reader function for tag Clondie24.games.chess.FOO
> clojure.lang.EdnReader$TaggedReader.readTagged (EdnReader.java:739)
>
>
> What I am I missing? any suggestions?
>
> Jim
>
>
>
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