2015-04-20 6:03 GMT+02:00 Peter Taoussanis <[email protected]>: > This got me wondering: is there an official contract somewhere describing > hash behaviour similarities we _can_ safely depend on? >
I don't think there is. IIRC clojurescript _has_ duplicated the recent work to minimize collisions in collection hashing and I think that a ticket unifying numeric hashes _might_ as well be accepted, if the performance impact is not too high. However, the only real requirement is that a hash equality in either CLJ or CLJS implies a hash equality in the other. There is value in being able to tweak the trade-off between performance, hash distribution and conformance to the host platform, so I don't expect hash algorithms to be standardized. When you want reproducability between runtimes, the right way (tm) is to use cryptographic content-based hashing. See https://github.com/ghubber/hasch for an implementation that might suit your needs. -- Note that posts from new members are moderated - please be patient with your first post. --- You received this message because you are subscribed to the Google Groups "ClojureScript" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/clojurescript.
