On Monday, 17 September 2018 at 19:10:27 UTC, Jonathan M Davis
wrote:
We're talking about introducing an attribute that should be
unnecessary, which will be annoying to use, and which will be
error-prone given the bugs that you'll get if you forget to
mark your copy constructor with it. And it's all to avoid
breaking a theoretical piece of code that I would think that we
could all agree is extremely rare if it exists in any real D
code base at all. Simply using a transitional compiler switch
like we have with other DIPs would make _way_ more sense than
burdening the language with an unnecessary attribute that's
just going to make it easier to write buggy code. This is
clearly a case of making the language worse long term in order
to avoid a theoretical problem in the short term.
- Jonathan M Davis
Completely agree.
