[clang] 037657d - [clang-format] Correctly annotate kw_operator in using decls (#136545)

[via cfe-commits]

Author: Owen Pan
Date: 2025-04-22T21:08:56-07:00
New Revision: 037657de7e5ccd4a37054829874a209b82fb8be7

URL: https://github.com/llvm/llvm-project/commit/037657de7e5ccd4a37054829874a209b82fb8be7
DIFF: https://github.com/llvm/llvm-project/commit/037657de7e5ccd4a37054829874a209b82fb8be7.diff

LOG: [clang-format] Correctly annotate kw_operator in using decls (#136545)

Fix #136541

Added: 
    

Modified: 
    clang/lib/Format/TokenAnnotator.cpp
    clang/unittests/Format/TokenAnnotatorTest.cpp

Removed: 
    


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diff  --git a/clang/lib/Format/TokenAnnotator.cpp b/clang/lib/Format/TokenAnnotator.cpp
index b4f303e281c1d..6d861d19117e2 100644
--- a/clang/lib/Format/TokenAnnotator.cpp
+++ b/clang/lib/Format/TokenAnnotator.cpp
@@ -3977,8 +3977,10 @@ void TokenAnnotator::calculateFormattingInformation(AnnotatedLine &Line) const {
   FormatToken *AfterLastAttribute = nullptr;
   FormatToken *ClosingParen = nullptr;
 
-  for (auto *Tok = FirstNonComment ? FirstNonComment->Next : nullptr; Tok;
-       Tok = Tok->Next) {
+  for (auto *Tok = FirstNonComment && FirstNonComment->isNot(tok::kw_using)
+                       ? FirstNonComment->Next
+                       : nullptr;
+       Tok; Tok = Tok->Next) {
     if (Tok->is(TT_StartOfName))
       SeenName = true;
     if (Tok->Previous->EndsCppAttributeGroup)

diff  --git a/clang/unittests/Format/TokenAnnotatorTest.cpp b/clang/unittests/Format/TokenAnnotatorTest.cpp
index e540af85aff3a..87b2f329d57cf 100644
--- a/clang/unittests/Format/TokenAnnotatorTest.cpp
+++ b/clang/unittests/Format/TokenAnnotatorTest.cpp
@@ -1084,6 +1084,11 @@ TEST_F(TokenAnnotatorTest, UnderstandsOverloadedOperators) {
   ASSERT_EQ(Tokens.size(), 11u) << Tokens;
   EXPECT_TOKEN(Tokens[3], tok::identifier, TT_FunctionDeclarationName);
   EXPECT_TOKEN(Tokens[7], tok::l_paren, TT_OverloadedOperatorLParen);
+
+  Tokens = annotate("using std::operator==;");
+  ASSERT_EQ(Tokens.size(), 7u) << Tokens;
+  // Not TT_FunctionDeclarationName.
+  EXPECT_TOKEN(Tokens[3], tok::kw_operator, TT_Unknown);
 }
 
 TEST_F(TokenAnnotatorTest, OverloadedOperatorInTemplate) {