> De: "John Rose" <john.r.r...@oracle.com> > À: "Da Vinci Machine Project" <mlvm-dev@openjdk.java.net> > Envoyé: Jeudi 15 Septembre 2016 21:02:14 > Objet: Re: A fast JSON serializer
> On Sep 14, 2016, at 3:03 PM, Remi Forax < fo...@univ-mlv.fr > wrote: >> Another idea from the JVM Summit, >> because the JDK9 now uses fast string concatenation by default, a JSON >> serializer based on reflection can be outperformed by a hand written code. >> The following code is a small JSON serializer that use the >> StringConcatFactory >> of JDK9 >> https://gist.github.com/forax/76124b69631475105f87ddd2205a4d91 > Very cute. Lots of ideas in there. Cool use of permuteArgs. And a MIC! doing the update the of inlining cache at the end is not that difficult BTW, a student of mine will do an update of the JSR 292 cookbook as his master thesis later this year. the hope to clean the dirt and add new patterns. > Doesn't handle strings with quotes or escapes, but that's easy to fix if you > don't care about performance of that case. i've thunk a little about that, the idea was that the user has to declare that the string need escaping using a field of the annotation JSONProperty. > Re-entrance detection is too strict, I think; looks like it would fail if the > Car had a Wheel. doh, sorry, i botch that, i've updated the code with a version that should work :) > You could build a templating engine by factoring out the middle parts of it. > That could then be used to create the JSON dumper. with the restriction that you can not have more than 255 holes in the template :) > — John Rémi > _______________________________________________ > mlvm-dev mailing list > mlvm-dev@openjdk.java.net > http://mail.openjdk.java.net/mailman/listinfo/mlvm-dev
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