[clang] 0916ae4 - [clang-format] Fix a misannotation of less/greater as angle brackets (#105941)

[via cfe-commits]

Author: Owen Pan
Date: 2024-08-24T20:10:03-07:00
New Revision: 0916ae49b89db6eb9eee9f6fee4f1a65fd9cdb74

URL: https://github.com/llvm/llvm-project/commit/0916ae49b89db6eb9eee9f6fee4f1a65fd9cdb74
DIFF: https://github.com/llvm/llvm-project/commit/0916ae49b89db6eb9eee9f6fee4f1a65fd9cdb74.diff

LOG: [clang-format] Fix a misannotation of less/greater as angle brackets (#105941)

Fixes #105877.

Added: 
    

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

Removed: 
    


################################################################################
diff  --git a/clang/lib/Format/TokenAnnotator.cpp b/clang/lib/Format/TokenAnnotator.cpp
index 7c35171ab35232..f15330098a2395 100644
--- a/clang/lib/Format/TokenAnnotator.cpp
+++ b/clang/lib/Format/TokenAnnotator.cpp
@@ -250,7 +250,7 @@ class AnnotatingParser {
         if (Precedence > prec::Conditional && Precedence < prec::Relational)
           return false;
       }
-      if (Prev.is(TT_ConditionalExpr))
+      if (Prev.isOneOf(tok::question, tok::colon) && !Style.isProto())
         SeenTernaryOperator = true;
       updateParameterCount(Left, CurrentToken);
       if (Style.Language == FormatStyle::LK_Proto) {

diff  --git a/clang/unittests/Format/TokenAnnotatorTest.cpp b/clang/unittests/Format/TokenAnnotatorTest.cpp
index 834430fa931129..db44d418a84484 100644
--- a/clang/unittests/Format/TokenAnnotatorTest.cpp
+++ b/clang/unittests/Format/TokenAnnotatorTest.cpp
@@ -620,6 +620,11 @@ TEST_F(TokenAnnotatorTest, UnderstandsNonTemplateAngleBrackets) {
   EXPECT_TOKEN(Tokens[2], tok::less, TT_BinaryOperator);
   EXPECT_TOKEN(Tokens[8], tok::greater, TT_BinaryOperator);
 
+  Tokens = annotate("return checklower ? a < b : a > b;");
+  ASSERT_EQ(Tokens.size(), 12u) << Tokens;
+  EXPECT_TOKEN(Tokens[4], tok::less, TT_BinaryOperator);
+  EXPECT_TOKEN(Tokens[8], tok::greater, TT_BinaryOperator);
+
   Tokens = annotate("return A < B ^ A > B;");
   ASSERT_EQ(Tokens.size(), 10u) << Tokens;
   EXPECT_TOKEN(Tokens[2], tok::less, TT_BinaryOperator);