I believe you are hitting this issue, which was fixed in Clojure 1.6.0
http://dev.clojure.org/jira/browse/CLJ-1171
Andy
On Sun, Apr 27, 2014 at 2:20 PM, Simon Doherty <simon.f.dohe...@gmail.com>wrote:
> We're encountering some strange behaviour with the instance? function. The
> first two examples are expected behaviour:
>
> (instance? Double 42.0)
>> => true
>> (instance? 99 42.0)
>> ClassCastException java.lang.Long cannot be cast to java.lang.Class
>
>
> but the next is not:
>
> (let [Double 99] (instance? Double 42.0))
>> => true
>
>
> We expected that when the symbol Double is bound to a value, then that
> symbol would be evaluated to its value before being passed to a function.
> In this case it seems that the call to instance? is being inlined.
>
> Am I missing something? Is this a bug?
>
> We are using Clojure 1.5.1.
>
> Thanks in advance.
>
> Simon
>
> --
> You received this message because you are subscribed to the Google
> Groups "Clojure" group.
> To post to this group, send email to clojure@googlegroups.com
> Note that posts from new members are moderated - please be patient with
> your first post.
> To unsubscribe from this group, send email to
> clojure+unsubscr...@googlegroups.com
> For more options, visit this group at
> http://groups.google.com/group/clojure?hl=en
> ---
> You received this message because you are subscribed to the Google Groups
> "Clojure" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to clojure+unsubscr...@googlegroups.com.
> For more options, visit https://groups.google.com/d/optout.
>
--
You received this message because you are subscribed to the Google
Groups "Clojure" group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with your
first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
---
You received this message because you are subscribed to the Google Groups
"Clojure" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to clojure+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.
