> On Jul 31, 2017, at 9:21 AM, Erik Eckstein <eeckst...@apple.com> wrote: > > Would it be possible that whenever a specialized class is instantiated and > the metadata already exists with a generic vtable, it just overwrites the > vtable pointer in the metadata with the specialized version? > I didn’t think that through, but maybe the same could be done for witness > tables?
Sure, we could redirect tables at runtime. It would require more runtime infrastructure, though we can't really get around uniquing vtables for classes, so that might be unavoidable. -Joe _______________________________________________ swift-dev mailing list swift-dev@swift.org https://lists.swift.org/mailman/listinfo/swift-dev
