[PATCH] D116859: Fix for: clang-format: break added to macro define with ColumnLimit: 0

[Armen Khachkinaev via Phabricator via cfe-commits]

futuarmo created this revision.
futuarmo added reviewers: djasper, MyDeveloperDay.
futuarmo requested review of this revision.
Herald added a project: clang.
Herald added a subscriber: cfe-commits.

Fix for #49164 <https://github.com/llvm/llvm-project/issues/49164> issue.
Alse added test for this case


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D116859

Files:
  clang/lib/Format/ContinuationIndenter.cpp
  clang/unittests/Format/FormatTest.cpp


Index: clang/unittests/Format/FormatTest.cpp
===================================================================
--- clang/unittests/Format/FormatTest.cpp
+++ clang/unittests/Format/FormatTest.cpp
@@ -4804,6 +4804,14 @@
                Style);
 }
 
+TEST_F(FormatTest, FormatMacroWithZeroColumnWidth) {
+  FormatStyle ZeroColumn = getLLVMStyleWithColumns(0);
+
+  verifyFormat("#define STRINGIFY(t) #t\n"
+               "#define MAKEVERSIONSTRING(x, y, z, build) STRINGIFY(x) \".\" STRINGIFY(y) \".\" STRINGIFY(z) \".\" STRINGIFY(build)\n",
+               ZeroColumn);
+}
+
 TEST_F(FormatTest, LayoutMacroDefinitionsStatementsSpanningBlocks) {
   verifyFormat("#define A \\\n"
                "  f({     \\\n"
Index: clang/lib/Format/ContinuationIndenter.cpp
===================================================================
--- clang/lib/Format/ContinuationIndenter.cpp
+++ clang/lib/Format/ContinuationIndenter.cpp
@@ -485,7 +485,8 @@
     // different LineFormatter would be used otherwise.
     if (Previous.ClosesTemplateDeclaration)
       return Style.AlwaysBreakTemplateDeclarations != FormatStyle::BTDS_No;
-    if (Previous.is(TT_FunctionAnnotationRParen))
+    if (Previous.is(TT_FunctionAnnotationRParen) &&
+        State.Line->Type != LT_PreprocessorDirective)
       return true;
     if (Previous.is(TT_LeadingJavaAnnotation) && Current.isNot(tok::l_paren) &&
         Current.isNot(TT_LeadingJavaAnnotation))


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