Here is something strange, and I don't see why!
Can anybody help?
This is the code in m.clj
(ns m
(:gen-class))
(defmacro mx
[x]
(list 'y))
(defn -main []
(println (macroexpand-1 '(mx P)))
(println (macroexpand-1 '(and P Q
1 When i load the namespace into a REPL and invoke (-mai
Does the "uberjar" contain .class files for your "m" namespace?
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Use ` instead of '
> On 15 Feb 2018, at 08:45, 'Burt' via Clojure wrote:
>
> Here is something strange, and I don't see why!
> Can anybody help?
>
> This is the code in m.clj
>
> (ns m
> (:gen-class))
>
> (defmacro mx
> [x]
> (list 'y))
>
> (defn -main []
> (println (macroexpand-1 '(
To elaborate on Nicola's correct answer, when -main is run from outside its
namespace, the binding of mx comes from the current environment (which
doesn't see a macro, and likely has no binding for mx). If you use ` in
-main, the currently visible binding is properly namespace qualified so
that it
Thanks Nicola and Justin,
syntax quote works, if the call of the macro is explicitely given in the
code.
In the real situation, whereI had the problem, the form which contains the
macro call is generated on the fly by a function.
But your hint helps nethertheless:
I bind the namespace to that i
Thanks for the advice. I will keep it in mind.
Luca
Il giorno mercoledì 14 febbraio 2018 20:05:32 UTC+1, Erik Assum ha scritto:
>
> There is also https://github.com/magnars/realize/blob/master/README.md which
> helps with this problem.
>
> Erik.
> --
> i farta
>
> 14. feb. 2018 kl. 12:20 skr
