I am deeply puzzled abouth the behavior of *.toString* invocation on a lazy sequence.
==> (.getClass (map println (range 100))) clojure.lang.LazySeq ==> (.toString (map println (range 100))) *;;* *integers 0..100 printed* "clojure.lang.LazySeq@590b4b81" It should be obvious from the output, but for the record: *LazySeq* doesn't override *toString*, so just the basic Java method is called. How can this possibly cause the sequence to be realized? Beyond my curiosity, however, what possible purpose could such behavior serve? -marko On Thursday, March 21, 2013 7:54:39 PM UTC+1, Razvan Rotaru wrote: > > Hi, > > I'm curious, why doesn't toString of clojure.lang.LazySeq return the > entire sequence as a String, and returns the Java pointer instead? I find > it annoying when I do this: > > > user> (str (map + [1 2 3])) > "clojure.lang.LazySeq@7861" > > > What's the reason behind this decision? Shouldn't toString trigger the > evaluation of the sequence? Doesn't it do that for other values, like > numbers and vectors? > > Is there an alternative to the code above (preferably simple and elegant), > which will return the etire sequence? > > > Thanks, > Răzvan > -- -- 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/groups/opt_out.
