在 2013年8月6日星期二UTC+8下午8时31分19秒,Qiu Xiafei写道:
>
> I have a test.clj file like the following:
>
> $ cat test.clj 
> (defn some-lazy-seq [n]
>       (lazy-cat
>          (concat n    ;; should be [n] here
>                  (some-lazy-seq (inc n)))))
> (println (take 100 (some-lazy-seq 0)))
>
> It's obviously wrong on line 3, the concat function shoud take a seq as 
> first argments.
>
> But when i run this file, the error is reported on line 5, where the 
> function is invocated, but not on where it's ocurred. It's really hard to 
> locate the bug espacially in big project.
>
> Any suggestions to avoid this kind of error message or better solutioins?
>
> thanks!
>

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