commit 5ac0b8f2506173f3b170d0f94805a8cda02d32c4
author Louis Dionne <ldionne@apple.com> Tue Mar 19 17:47:53 2019 +0000
committer Louis Dionne <ldionne@apple.com> Tue Mar 19 17:47:53 2019 +0000
tree c192a14db17496217d55ec4d6557612810756d5c
parent ddb1b0576add522af99a3d48794a6da82fceec23

[libc++] Mark internal types of std::filesystem as hidden

Summary:
Otherwise, implicit instantiations of templates with these types can
cause the dylib to start exporting the vtable/RTTI of the instantiation.
Giving hidden visibility to those types causes the compiler to understand
that they are not used outside the dylib, and as a result implicitly
instantiated vtables/RTTI of templates with those internal types will
get hidden visibility.

Reviewers: EricWF

Subscribers: christof, jkorous, dexonsmith, jdoerfert, libcxx-commits

Differential Revision: https://reviews.llvm.org/D59550

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@356488 91177308-0d34-0410-b5e6-96231b3b80d8