Am Sat, 16 Aug 2014 10:36:19 +0000 schrieb "Mike" <n...@none.com>:
> On Saturday, 16 August 2014 at 09:29:14 UTC, Johannes Pfau wrote: > > > I just had a look at this and ClassInfo has a mutable 'monitor' > > field, > > so it can't be placed into read-only data. > > This was discussed at DConf 2014. > https://www.youtube.com/watch?v=TNvUIWFy02I#t=1008 > > > There is currently a pull request to remove the monitor from > object field from object and therefore all classes: > https://github.com/D-Programming-Language/druntime/pull/789. > > Mike Great! But I think this pull request addresses a different monitor problem: There's an implicit __monitor field in every class right now, which makes every class _instance_ bigger. But the monitor in TypeInfo/ClassInfo is different: ClassInfo exists only once per class, it doesn't matter how many class instances you've got. AFAIR this monitor is to support synchronize(ClassType) which synchronizes on the class type, not on an instance.
