[all-commits] [llvm/llvm-project] 7a3707: [clang][lex] Store non-owning options ref in `Head...

[Jan Svoboda via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 7a370748c0928b9ccfe26127e54eb3c1a1827d75
      https://github.com/llvm/llvm-project/commit/7a370748c0928b9ccfe26127e54eb3c1a1827d75
  Author: Jan Svoboda <jan_svoboda at apple.com>
  Date:   2025-03-25 (Tue, 25 Mar 2025)

  Changed paths:
    M clang-tools-extra/clang-tidy/ExpandModularHeadersPPCallbacks.cpp
    M clang-tools-extra/clang-tidy/ExpandModularHeadersPPCallbacks.h
    M clang-tools-extra/clangd/ModulesBuilder.cpp
    M clang-tools-extra/clangd/unittests/StdLibTests.cpp
    M clang-tools-extra/modularize/ModularizeUtilities.cpp
    M clang-tools-extra/modularize/ModularizeUtilities.h
    M clang/include/clang/Frontend/ASTUnit.h
    M clang/include/clang/Lex/HeaderSearch.h
    M clang/lib/Frontend/ASTUnit.cpp
    M clang/lib/Frontend/CompilerInstance.cpp
    M clang/lib/Lex/HeaderSearch.cpp
    M clang/unittests/Analysis/MacroExpansionContextTest.cpp
    M clang/unittests/Basic/SourceManagerTest.cpp
    M clang/unittests/Lex/HeaderSearchTest.cpp
    M clang/unittests/Lex/LexerTest.cpp
    M clang/unittests/Lex/ModuleDeclStateTest.cpp
    M clang/unittests/Lex/PPCallbacksTest.cpp
    M clang/unittests/Lex/PPConditionalDirectiveRecordTest.cpp
    M clang/unittests/Lex/PPDependencyDirectivesTest.cpp
    M clang/unittests/Lex/PPMemoryAllocationsTest.cpp

  Log Message:
  -----------
  [clang][lex] Store non-owning options ref in `HeaderSearch` (#132780)

This makes it so that `CompilerInvocation` can be the only entity that
manages ownership of `HeaderSearchOptions`, making it possible to
implement copy-on-write semantics.



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