tree 7b6ca59272b461960ed2da95f6b4407dad6cf021
parent 62a455435e7f7af07de4f8bd3d17271e10663629
author Christopher Di Bella <cjdb@google.com> 1645815572 +0000
committer Copybara-Service <copybara-worker@google.com> 1645872604 -0800

[libcxx][modules] protects users from relying on detail headers

libc++ has started splicing standard library headers into much more
fine-grained content for maintainability. It's very likely that outdated
and naive tooling (some of which is outside of LLVM's scope) will
suggest users include things such as <__ranges/access.h> instead of
<ranges>, and Hyrum's law suggests that users will eventually begin to
rely on this without the help of tooling. As such, this commit
intends to protect users from themselves, by making it a hard error for
anyone outside of the standard library to include libc++ detail headers.

Differential Revision: https://reviews.llvm.org/D106124

GitOrigin-RevId: 5aaefa510ef055e8f044ca89e352d4313f3aba49