[all-commits] [llvm/llvm-project] aa484c: [Lex/DependencyDirectivesScanner] Keep track of th...

[Argyrios Kyrtzidis via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: aa484c90cf5902042cec0f6a4f3bf2a460eea307
      https://github.com/llvm/llvm-project/commit/aa484c90cf5902042cec0f6a4f3bf2a460eea307
  Author: Argyrios Kyrtzidis <kyrtzidis at apple.com>
  Date:   2022-09-07 (Wed, 07 Sep 2022)

  Changed paths:
    M clang/include/clang/Lex/DependencyDirectivesScanner.h
    M clang/lib/Lex/DependencyDirectivesScanner.cpp
    M clang/lib/Lex/Lexer.cpp
    M clang/unittests/Lex/CMakeLists.txt
    M clang/unittests/Lex/DependencyDirectivesScannerTest.cpp
    A clang/unittests/Lex/PPDependencyDirectivesTest.cpp

  Log Message:
  -----------
  [Lex/DependencyDirectivesScanner] Keep track of the presence of tokens between the last scanned directive and EOF

Directive `dependency_directives_scan::tokens_present_before_eof` is introduced to indicate there were tokens present before
the last scanned dependency directive and EOF.
This is useful to ensure we correctly identify the macro guards when lexing using the dependency directives.

Differential Revision: https://reviews.llvm.org/D133357