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Re:Dotty: a next generation compiler for Scala by jinst8gmi on Wednesday June 22, 2016 @06:29AM (#11952697)
According to Odersky's recent talk [1, 2] it's about twice as fast as the current Scala compiler and should still improve significantly.

[1] https://www.youtube.com/watch?v=_2oGY8l67jk

[2] http://www.slideshare.net/Odersky/scala-days-nyc-2016 (slide 21)

Re:Dotty: a next generation compiler for Scala by wereHamster on Wednesday June 22, 2016 @03:51PM (#11956496)
> I think we can do better than Monads to achieve this.

(slide 52)

Looking forward to their solution.

Re:Dotty: a next generation compiler for Scala by Blaisorblade0 on Friday June 24, 2016 @07:39AM (#11968929)
For anybody curious, I think he's hinting at modern effect systems, on which there's lots of research these days. He advised for instance Lukas Rytz PhD thesis at EPFL (and Lukas Rytz is still working on Scala, now at Lightbend).