I figure since new is expecting a class at compiletime, we can never pass
it a class that we evaluate at runtime(those locals), ergo => impossible to
macro around "new" like that
like this => impossible:
*(let [a java.lang.RuntimeException]
(macro-that-eventually-calls-new a))*
maybe someone could suggest another way? clojure.reflect ?
On Thu, Feb 14, 2013 at 10:40 PM, AtKaaZ <[email protected]> wrote:
> thanks for the reply,
>
> => *(defmacro mew [cls & args]
> `(new ~cls ~@args))*
> #'runtime.q/mew
> =>* (let [a java.lang.RuntimeException]
> (mew a)
> )*
>
> CompilerException java.lang.IllegalArgumentException: Unable to resolve
> classname: a, compiling:(NO_SOURCE_PATH:2:3)
>
> that would be the equivalent macro of what *new* is doing
> it's like
> *(new a)*
> CompilerException java.lang.IllegalArgumentException: Unable to resolve
> classname: a, compiling:(NO_SOURCE_PATH:2:3)
>
>
> This is the goal:
>
> The goal is to can write this form:
> => *(let [a java.lang.RuntimeException]
> (new a))*
>
> but I think it's impossible, at least by using "new" it is
>
>
> On Thu, Feb 14, 2013 at 10:34 PM, Andy Fingerhut <[email protected]
> > wrote:
>
>>
>> On Feb 14, 2013, at 1:27 PM, AtKaaZ wrote:
>>
>> The goal is to can write this form:
>> => *(let [a java.lang.RuntimeException]
>> (new a)
>> )*
>> CompilerException java.lang.IllegalArgumentException: Unable to resolve
>> classname: a, compiling:(NO_SOURCE_PATH:2:3)
>>
>> attempt with macro:
>> =>* (defmacro mew [cls & restt]
>> `(new ~(eval cls) ~@restt)
>> )*
>> #'runtime.q/mew
>>
>>
>> This is probably your closest attempt. Try this variation on the above:
>>
>> (defmacro mew [cls & args]
>> `(new ~cls ~@args))
>>
>> user=> (macroexpand-1 '(mew java.lang.RuntimeException))
>> (new java.lang.RuntimeException)
>>
>> Andy
>>
>> --
>> --
>> You received this message because you are subscribed to the Google
>> Groups "Clojure" group.
>> To post to this group, send email to [email protected]
>> Note that posts from new members are moderated - please be patient with
>> your first post.
>> To unsubscribe from this group, send email to
>> [email protected]
>> 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 [email protected].
>> For more options, visit https://groups.google.com/groups/opt_out.
>>
>>
>>
>
>
>
> --
> Please correct me if I'm wrong or incomplete,
> even if you think I'll subconsciously hate it.
>
>
--
Please correct me if I'm wrong or incomplete,
even if you think I'll subconsciously hate it.
--
--
You received this message because you are subscribed to the Google
Groups "Clojure" group.
To post to this group, send email to [email protected]
Note that posts from new members are moderated - please be patient with your
first post.
To unsubscribe from this group, send email to
[email protected]
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 [email protected].
For more options, visit https://groups.google.com/groups/opt_out.
