Thomas, this is an isolated test, the real case was creating a defmulti
macro wrapper and a defmethod one, so in the mydefmulti macro I attach some
metadata to the var defmulti defines and then I fetch it in the mydefmethod
calls (by using resolve), all in compile-time. This works perfectly in the
pure CLJ case but not in the CLJS one. The nested def in my original
example was an extra experiment, because for testing I need to put nested
def's inside deftest's, but note the problem manifests also with the
top-level def, so nesting the def is not really the problem here.
The vars needs to be defined on the CLJS side, I thought they were
available at compile-time for the macros like in CLJ. So if standard resolve
and his friends doesn't work, there is a way using the analyzer and &env
from the macro to get that CLJS compile-time var and his metadata? I'm
discovering functions like cljs.core/resolve-var but doing
(cljs.core/resolve-var
&env v) in the macro from my original example doesn't seems to resolve
anything.
I think for my real case there is a workaround by defining a (def
my-metadata-for-cljs-vars (atom {})) in macros.clj and then update it in
the mydefmulti calls using the fully qualified var sym as a key and the
data (originally stored in the metadata) as the value, then read it from
the mydefmacro calls. I think that will work, but I really want to know if
resolving the CLJS var and getting his metadata from the macro is possible.
Saludos,
Nahuel Greco.
On Sat, May 31, 2014 at 5:50 AM, Thomas Heller <[email protected]> wrote:
> Hey,
>
> not sure what you are trying to achieve, since the compiler should already
> warn you if a var is not found. Might not do so when nesting defs. def/defn
> are top level forms und should not be nested, especially no def in a defn.
>
> As for your question: the CLJS compiler supports vars in macros, but only
> on the clojure side (eg. in your macros.clj). Your macros may reference
> other vars from the CLJ world but know nothing about the CLJS world (expect
> maybe from &env).
>
> HTH,
> /thomas
>
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