[all-commits] [llvm/llvm-project] 228b33: Support pack expansion for Clang Thread Safety att...

[Aaron Puchert via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 228b3309880bbd5a237257df5d67a0f7f4b5a01f
      https://github.com/llvm/llvm-project/commit/228b3309880bbd5a237257df5d67a0f7f4b5a01f
  Author: Aaron Puchert <aaronpuchert at alice-dsl.net>
  Date:   2025-04-30 (Wed, 30 Apr 2025)

  Changed paths:
    M clang/include/clang/Basic/Attr.td
    M clang/test/SemaCXX/warn-thread-safety-analysis.cpp
    M clang/test/SemaCXX/warn-thread-safety-parsing.cpp
    M clang/utils/TableGen/ClangAttrEmitter.cpp

  Log Message:
  -----------
  Support pack expansion for Clang Thread Safety attributes (#137477)

Support for attribute parameter packs was added some time ago in commit
ead1690d31f815c00fdd2bc23db4766191bbeabc. But template substitution
didn't expand the packs yet. For now expansion can only happen within a
`VariadicExprArgument`: i.e. in `try_acquire_capability`, which takes a
regular and a variadic argument, the template can't have a single pack
that then expands to cover both arguments.

This is a prerequisite for #42000.



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