[llvm-branch-commits] [clang-tools-extra] 8b5c722 - Revert "[clang-tidy] Preserve line endings in macro-to-enum fixes (#202054)"

[via llvm-branch-commits]

Author: Zeyi Xu
Date: 2026-06-08T10:32:42+08:00
New Revision: 8b5c72224800fcb2b1636fda3ae48b0899685719

URL: https://github.com/llvm/llvm-project/commit/8b5c72224800fcb2b1636fda3ae48b0899685719
DIFF: https://github.com/llvm/llvm-project/commit/8b5c72224800fcb2b1636fda3ae48b0899685719.diff

LOG: Revert "[clang-tidy] Preserve line endings in macro-to-enum fixes (#202054)"

This reverts commit ed06da7cadc7d2ed2705d5bf43612ce8fc6582ed.

Added: 
    

Modified: 
    clang-tools-extra/clang-tidy/modernize/MacroToEnumCheck.cpp
    clang-tools-extra/docs/ReleaseNotes.rst
    clang-tools-extra/test/.gitattributes

Removed: 
    clang-tools-extra/test/clang-tidy/checkers/modernize/Inputs/macro-to-enum/crlf.cpp
    clang-tools-extra/test/clang-tidy/checkers/modernize/Inputs/macro-to-enum/crlf.cpp.expected
    clang-tools-extra/test/clang-tidy/checkers/modernize/macro-to-enum-crlf.cpp


################################################################################
diff  --git a/clang-tools-extra/clang-tidy/modernize/MacroToEnumCheck.cpp b/clang-tools-extra/clang-tidy/modernize/MacroToEnumCheck.cpp
index aa4732ceba7e0..1c49c32f9fecb 100644
--- a/clang-tools-extra/clang-tidy/modernize/MacroToEnumCheck.cpp
+++ b/clang-tools-extra/clang-tidy/modernize/MacroToEnumCheck.cpp
@@ -470,15 +470,11 @@ void MacroToEnumCallbacks::warnMacroEnum(const EnumMacro &Macro) const {
 void MacroToEnumCallbacks::fixEnumMacro(const MacroList &MacroList) const {
   SourceLocation Begin =
       MacroList.front().Directive->getMacroInfo()->getDefinitionLoc();
-  const StringRef LineEnding =
-      SM.getBufferData(SM.getFileID(Begin)).detectEOL();
-
   Begin = SM.translateLineCol(SM.getFileID(Begin),
                               SM.getSpellingLineNumber(Begin), 1);
   const DiagnosticBuilder Diagnostic =
       Check->diag(Begin, "replace macro with enum")
-      << FixItHint::CreateInsertion(Begin,
-                                    (llvm::Twine("enum {") + LineEnding).str());
+      << FixItHint::CreateInsertion(Begin, "enum {\n");
 
   for (size_t I = 0U; I < MacroList.size(); ++I) {
     const EnumMacro &Macro = MacroList[I];
@@ -507,8 +503,7 @@ void MacroToEnumCallbacks::fixEnumMacro(const MacroList &MacroList) const {
       LangOpts);
   End = SM.translateLineCol(SM.getFileID(End),
                             SM.getSpellingLineNumber(End) + 1, 1);
-  Diagnostic << FixItHint::CreateInsertion(
-      End, (llvm::Twine("};") + LineEnding).str());
+  Diagnostic << FixItHint::CreateInsertion(End, "};\n");
 }
 
 void MacroToEnumCheck::registerPPCallbacks(const SourceManager &SM,

diff  --git a/clang-tools-extra/docs/ReleaseNotes.rst b/clang-tools-extra/docs/ReleaseNotes.rst
index 350ff0872c8e5..fca6c21f22768 100644
--- a/clang-tools-extra/docs/ReleaseNotes.rst
+++ b/clang-tools-extra/docs/ReleaseNotes.rst
@@ -581,10 +581,6 @@ Changes in existing checks
   positives on project headers that use the same name as a standard library
   header.
 
-- Improved :doc:`modernize-macro-to-enum
-  <clang-tidy/checks/modernize/macro-to-enum>` check by preserving source file
-  line endings in fix-it replacements.
-
 - Improved :doc:`modernize-pass-by-value
   <clang-tidy/checks/modernize/pass-by-value>` check by adding `IgnoreMacros`
   option to suppress warnings in macros.

diff  --git a/clang-tools-extra/test/.gitattributes b/clang-tools-extra/test/.gitattributes
index 3c39030a95eab..3d4df1e9976bc 100644
--- a/clang-tools-extra/test/.gitattributes
+++ b/clang-tools-extra/test/.gitattributes
@@ -13,5 +13,3 @@ clang-tidy/infrastructure/export-diagnostics.cpp -text
 # These test input files rely on two-byte Windows (CRLF) line endings.
 clang-apply-replacements/Inputs/crlf/crlf.cpp -text
 clang-apply-replacements/Inputs/crlf/crlf.cpp.expected -text
-clang-tidy/checkers/modernize/Inputs/macro-to-enum/crlf.cpp -text
-clang-tidy/checkers/modernize/Inputs/macro-to-enum/crlf.cpp.expected -text

diff  --git a/clang-tools-extra/test/clang-tidy/checkers/modernize/Inputs/macro-to-enum/crlf.cpp b/clang-tools-extra/test/clang-tidy/checkers/modernize/Inputs/macro-to-enum/crlf.cpp
deleted file mode 100644
index c05d3cd5823ba..0000000000000
--- a/clang-tools-extra/test/clang-tidy/checkers/modernize/Inputs/macro-to-enum/crlf.cpp
+++ /dev/null
@@ -1,2 +0,0 @@
-#define RED 1
-#define GREEN 2

diff  --git a/clang-tools-extra/test/clang-tidy/checkers/modernize/Inputs/macro-to-enum/crlf.cpp.expected b/clang-tools-extra/test/clang-tidy/checkers/modernize/Inputs/macro-to-enum/crlf.cpp.expected
deleted file mode 100644
index 31100df321bb3..0000000000000
--- a/clang-tools-extra/test/clang-tidy/checkers/modernize/Inputs/macro-to-enum/crlf.cpp.expected
+++ /dev/null
@@ -1,4 +0,0 @@
-enum {
-RED = 1,
-GREEN = 2
-};

diff  --git a/clang-tools-extra/test/clang-tidy/checkers/modernize/macro-to-enum-crlf.cpp b/clang-tools-extra/test/clang-tidy/checkers/modernize/macro-to-enum-crlf.cpp
deleted file mode 100644
index ae54e5b7fe430..0000000000000
--- a/clang-tools-extra/test/clang-tidy/checkers/modernize/macro-to-enum-crlf.cpp
+++ /dev/null
@@ -1,6 +0,0 @@
-// Verify the fix-it preserves CRLF line endings.
-
-// RUN: cp %S/Inputs/macro-to-enum/crlf.cpp %t.cpp
-// RUN: chmod u+w %t.cpp
-// RUN: clang-tidy %t.cpp -fix --checks='-*,modernize-macro-to-enum' > %t.out 2>&1
-// RUN: 
diff  %t.cpp %S/Inputs/macro-to-enum/crlf.cpp.expected