> On Jul 29, 2016, at 5:20 PM, Jacob Bandes-Storch via swift-evolution > <swift-evolut...@swift.org> wrote: > > I am curious whether the team has thoughts on how to organize the compiler > codebase in such a way that new features can be added, and possibly > source-breaking changes made, while still keeping the old functionality > around.
Picking up on a slightly cold thread... Yes, I've lately been sketching an extension to build-configuration (#if ..) statements, to support feature-at-a-time evolution. There are a bunch of edge issues to work through around compiler release channels, name scoping, diagnostics, parser control and so forth. I'll post a draft proposal in a bit. -Graydon _______________________________________________ swift-dev mailing list swift-dev@swift.org https://lists.swift.org/mailman/listinfo/swift-dev
