On Jan 27, 2010, at 1:03 AM, Patrick Wright wrote: > On Wed, Jan 27, 2010 at 9:45 AM, John Rose <john.r...@sun.com> wrote: >> On Jan 27, 2010, at 12:30 AM, Patrick Wright wrote: >> >>> Is the EG considering Anonymous classes for JSR 292? >> >> No, sorry. Should we be... what's the use case? -- John > > From > what I read on this mailing list, Charles Nutter for example was quite > excited to have them. > > I may have misunderstood the point of ACs, however.
They also provide a way to do something like bytecode-level templating, since CP elements can be varied while the rest of the code is held fixed. I hope somebody experiments with loop customization at some point, using anonymous classes or a higher-level bytecode weaver. But that's in the future. The uses you and Charlie point out are less important that they seemed at first for two reasons: 1. Method handles provide a better replacement for the swarm of tiny classes. 2. Hotspot is in the process of weaning itself off of perm gen. One of the main features of perm-gen is that its objects never move except during full GC, and the code cache relied on this invariant until just last year, with the 'ScavengeRootsInCode' changes. -- John _______________________________________________ mlvm-dev mailing list mlvm-dev@openjdk.java.net http://mail.openjdk.java.net/mailman/listinfo/mlvm-dev
