Indeed:
(def ecr (with-meta [1] {:amazing true}))
(def ^:const c ecr)
(meta ecr) -> {:amazing true}
(meta c) -> {:amazing true}
On Tuesday, March 19, 2013 8:57:28 AM UTC+1, Nicola Mometto wrote:
>
> If I remember correctly, this is a bug due to the fact that constant empty
> literals are handled in a special way from the compiler.
> Il giorno 19/mar/2013 08.49, "Marko Topolnik"
> <marko.t...@gmail.com<javascript:>>
> ha scritto:
>
>> The way speed is achieved for :const is that it is given the same
>>> treatment as Java's *compile-time constants*, so you're not even
>>> touching the var when you refer to it by name. Now, *meta* could be
>>> accepted as a special case, explicitly detected by the compiler, but that
>>> mechanism would once again be easily defeated. So I'd say it's not a bug,
>>> but a case of *you can't have your cake and eat it, too.*
>>>
>>
>> On second thought, I my be wrong since the meta is not on the var, but on
>> the map object itself. Maybe it really is just a bug due to which the
>> compiled-in value doesn't have metadata copied to it.
>>
>> -marko
>>
>>
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