[swift-dev] switches versus the visitor pattern?
rjmccall at apple.com
Fri Aug 11 18:21:09 CDT 2017
> On Aug 11, 2017, at 7:05 PM, David Zarzycki via swift-dev <swift-dev at swift.org> wrote:
> Hi Slava,
> Thanks. I’m not planning on seeking them out. I just want to minimize future merge conflicts with an experimental branch I’m working on. The visitor pattern helps people like me by minimizing the number of boilerplate updates a person needs to do after adding a new type to the type system.
Unless you're splitting an existing type, most of the boilerplate updates are intentional — we want people to think about every case when doing the update.
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