Hi all, Just a quick note to say that ES6 Classes ( https://hacks.mozilla.org/2015/07/es6-in-depth-classes/) are going to ride the trains with 45. This will hopefully be quite useful for the Firefox developer experience, as there have been many requests, both internal and external, for classes support.
We are aware that there is room for performance improvement, but we wanted to get classes support out to people for immediate use. The current performance profile is as follows: 1. Class definition sites (and therefore functions/scripts/jsms that contain them) are not jit-able. If a function is hot, do not include a class definition directly inside it. 2. Instance and static methods defined in classes, however, *are* so long as they do not reference super. Work to improve this JIT integration is currently in flight. Look for performance improvements in coming versions. This has been a group effort. Many thanks for Jason Orendorff for his guidance over the long course of this project. Thanks, Eric Faust _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
