Alex,

On the Dev list, you mentioned you had discussed this several times with 
Rich and others, but were unable to reach concensus.  May I ask what the 
hangup is (i.e., what reservations / objections were expressed) and what 
other options came out of those discussions?

Nathan Davis

On Friday, May 27, 2016 at 7:39:15 AM UTC-5, Alex Miller wrote:
>
> That is one option and is in the ballpark of 
> http://dev.clojure.org/jira/browse/CLJ-1750.
>
> On Thursday, May 26, 2016 at 11:47:09 PM UTC-5, Nathan Davis wrote:
>>
>> I can't reply to the thread on the Dev list, but here's my take.
>>
>> Unless I'm missing something, it seems to me that most these issues could 
>> be resolved by having a dynamic var that gets set during macro expansion 
>> according to the target platform.  For instance, *compiler-target* is 
>> set to :clj or :cljs, depending on whether we're compiler for the JVM or 
>> Javascript.  If we want to be a little more sophisticated, 
>> *compiler-target* could be a set whose members are the same keywords 
>> that were "active" at read-time.  That would have the additional 
>> convenience that *compiler-target* would act as a predicate, indicating 
>> whether a particular "feature" is available for the target platform.
>>
>> Then if a macro needs to be expanded in a certain way for certain 
>> platforms, it can just consult *compiler-target*.
>>
>> Anyway, that's my 2-cents.
>>
>> Nathan Davis
>>
>>
>> On Sunday, May 22, 2016 at 5:57:14 PM UTC-5, Herwig Hochleitner wrote:
>>>
>>> This thread just came up, while I was in the process of composing a mail 
>>> on this topic to clojure-dev: 
>>> https://groups.google.com/d/msg/clojure-dev/f6ULUVokXrU/3uue5okSAgAJ
>>>
>>> 2016-05-20 23:22 GMT+02:00 Dan Burton <danburt...@gmail.com>:
>>>
>>>> What about something like
>>>>
>>>> (def obj #?(:clj Object :cljs js/Object))
>>>>
>>>
>>> Unfortunately, doesn't work for cases, where you need to generate 
>>> different syntax, eg `(try .. (catch Throwable e ...))` vs `(try ... (catch 
>>> :default e ...))`.
>>>
>>>

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