Clojurians Log v2
Clojure programming
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Issues: https://clojure.atlassian.net/browse/CLJ | Guide: https://insideclojure.org/2015/05/01/contributing-clojure/
cgrand 2019-08-16T10:02:41.273200Z
@jaihindhreddy https://github.com/cgrand/confluent-map/blob/master/src/main/java/net/cgrand/TrieMap_5Bits.java is a patched version of CHAMP to use Clojure interfaces and hash functions (for benchmarking purpose)
jaihindhreddy 2019-08-16T10:22:29.274200Z
Thanks! I think I know what I'm doing this weekend!
favila 2019-08-16T11:33:39.274900Z
Champs in clojurescript exist also
uneman 2019-08-20T05:39:30.287700Z
Can you spot where can I find clojurescript version?
uneman 2019-08-20T05:47:22.288Z
https://github.com/bendyworks/lean-map oh, this is it I guess 🙂
favila 2019-08-20T12:36:25.288900Z
Yep that’s what I was thinking of. There’s a talk also
favila 2019-08-20T12:39:35.289200Z
uneman 2019-08-20T14:05:23.289400Z
Great, thanks!
favila 2019-08-16T11:35:52.277300Z
Another wrinkle is that until recently Clojure PHM left empty nodes after dissoc, which caused pathological behavior in some of the champ vs hamt benchmarks
2019-08-16T19:55:00.279500Z
Huh, I know that I am slow to realize things sometimes, but it just finally hit me that while Clojure's built-in persistent data structures are (I believe) guaranteed to produce trees (not DAGs) of objects in memory (except for leaf elements that are identical), the confluently persistent ones like RRB vectors, etc. that can quickly concatenate/merge two arbitrary such data structures can be used to concatenate large data structures with themselves, and you can end up with all sorts of reuse of internal objects in a single collection.