[all-commits] [llvm/llvm-project] 96c8e2: [APINotes] For a re-exported module, look for APIN...

[Egor Zhdan via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 96c8e2e88cc68416ddce4a9bf1a9221387b6d4b3
      https://github.com/llvm/llvm-project/commit/96c8e2e88cc68416ddce4a9bf1a9221387b6d4b3
  Author: Egor Zhdan <e_zhdan at apple.com>
  Date:   2024-03-28 (Thu, 28 Mar 2024)

  Changed paths:
    M clang/lib/APINotes/APINotesManager.cpp
    A clang/test/APINotes/Inputs/Headers/ExportAs.apinotes
    A clang/test/APINotes/Inputs/Headers/ExportAs.h
    A clang/test/APINotes/Inputs/Headers/ExportAsCore.h
    M clang/test/APINotes/Inputs/Headers/module.modulemap
    A clang/test/APINotes/export-as.c

  Log Message:
  -----------
  [APINotes] For a re-exported module, look for APINotes in the re-exporting module's apinotes file

This upstreams https://github.com/apple/llvm-project/pull/8063.

If module FooCore is re-exported through module Foo (by using
`export_as` in the modulemap), look for attributes of FooCore symbols in
Foo.apinotes file.

Swift bundles `std.apinotes` file that adds Swift-specific attributes to
the C++ stdlib symbols. In recent versions of libc++, module std got
split into multiple top-level modules, each of them is re-exported
through std. This change allows us to keep using a single modulemap file
for all supported C++ stdlibs.

rdar://121680760



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