[llvm-branch-commits] [clang] release/20.x: [clang-format] Fix the indent of StartOfName after Attr… (PR #141004)

[Owen Pan via llvm-branch-commits]

https://github.com/owenca created https://github.com/llvm/llvm-project/pull/141004

…ibuteMacro (#140361)

Backport 0cac25bcf5a246eb8a1f02d5041731ae9a6f00e0

>From b05983ec62a831de375e96f9ddb9e87e8043049d Mon Sep 17 00:00:00 2001
From: Owen Pan <owenpiano at gmail.com>
Date: Wed, 21 May 2025 21:37:54 -0700
Subject: [PATCH] release/20.x: [clang-format] Fix the indent of StartOfName
 after AttributeMacro (#140361)

Backport 0cac25bcf5a246eb8a1f02d5041731ae9a6f00e0
---
 clang/lib/Format/ContinuationIndenter.cpp | 4 +++-
 clang/unittests/Format/FormatTest.cpp     | 7 +++++++
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/clang/lib/Format/ContinuationIndenter.cpp b/clang/lib/Format/ContinuationIndenter.cpp
index 6f7d213c0b559..d953348b0258d 100644
--- a/clang/lib/Format/ContinuationIndenter.cpp
+++ b/clang/lib/Format/ContinuationIndenter.cpp
@@ -1452,7 +1452,9 @@ unsigned ContinuationIndenter::getNewLineColumn(const LineState &State) {
        (PreviousNonComment->ClosesTemplateDeclaration ||
         PreviousNonComment->ClosesRequiresClause ||
         (PreviousNonComment->is(TT_AttributeMacro) &&
-         Current.isNot(tok::l_paren)) ||
+         Current.isNot(tok::l_paren) &&
+         !Current.endsSequence(TT_StartOfName, TT_AttributeMacro,
+                               TT_PointerOrReference)) ||
         PreviousNonComment->isOneOf(
             TT_AttributeRParen, TT_AttributeSquare, TT_FunctionAnnotationRParen,
             TT_JavaAnnotation, TT_LeadingJavaAnnotation))) ||
diff --git a/clang/unittests/Format/FormatTest.cpp b/clang/unittests/Format/FormatTest.cpp
index 90a79230e9f4c..1afcc75a2e19e 100644
--- a/clang/unittests/Format/FormatTest.cpp
+++ b/clang/unittests/Format/FormatTest.cpp
@@ -12419,6 +12419,13 @@ TEST_F(FormatTest, UnderstandsAttributes) {
   verifyFormat("SomeType s __unused{InitValue};", CustomAttrs);
   verifyFormat("SomeType *__capability s(InitValue);", CustomAttrs);
   verifyFormat("SomeType *__capability s{InitValue};", CustomAttrs);
+
+  auto Style = getLLVMStyleWithColumns(60);
+  Style.AttributeMacros.push_back("my_fancy_attr");
+  Style.PointerAlignment = FormatStyle::PAS_Left;
+  verifyFormat("void foo(const MyLongTypeNameeeeeeeeeeeee* my_fancy_attr\n"
+               "             testttttttttt);",
+               Style);
 }
 
 TEST_F(FormatTest, UnderstandsPointerQualifiersInCast) {