[PATCH] D105439: [clang] protects users from relying on libc++ detail headers

[Louis Dionne via Phabricator via cfe-commits]

ldionne added a comment.

I'm not entirely sure I understand the purpose of this patch. So the idea is that let's say a tool suggests including `<__algorithm/find.h>` to get the definition of `std::find` as a IWYU fix-it sort of suggestion, the user would naively do that, and then the compiler (with this patch) would error out saying "woops, you can't include that libc++ detail header". Is that the idea?

If that's it, then I would much rather fix the tools that incorrectly suggest including those implementation detail headers in the first place. Users will be less confused and we won't have to special-case a special directory name, which I can imagine could cause issues. I think it's great to try and give the proper diagnostic to users, but I think the correct place to do that is in the tool that suggests it in the first place. Thoughts?


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D105439/new/

https://reviews.llvm.org/D105439