Author: Owen Pan
Date: 2025-07-20T19:01:46-07:00
New Revision: 06ed4d2c92ef7785f6c39e567b8bdefd2defdedb

URL: 
https://github.com/llvm/llvm-project/commit/06ed4d2c92ef7785f6c39e567b8bdefd2defdedb
DIFF: 
https://github.com/llvm/llvm-project/commit/06ed4d2c92ef7785f6c39e567b8bdefd2defdedb.diff

LOG: [clang-format] Fix a bug in `BreakBeforeBinaryOperators: All` (#149695)

Fixes #149520

Added: 
    

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

Removed: 
    


################################################################################
diff  --git a/clang/lib/Format/ContinuationIndenter.cpp 
b/clang/lib/Format/ContinuationIndenter.cpp
index 4010f7fbd25be..bf67f9e5fd241 100644
--- a/clang/lib/Format/ContinuationIndenter.cpp
+++ b/clang/lib/Format/ContinuationIndenter.cpp
@@ -560,6 +560,7 @@ bool ContinuationIndenter::mustBreak(const LineState 
&State) {
         return true;
     }
   } else if (Current.is(TT_BinaryOperator) && Current.CanBreakBefore &&
+             Current.getPrecedence() != prec::Assignment &&
              CurrentState.BreakBeforeParameter) {
     return true;
   }

diff  --git a/clang/unittests/Format/FormatTest.cpp 
b/clang/unittests/Format/FormatTest.cpp
index 0bc1c6d45656e..11d94e47e5b06 100644
--- a/clang/unittests/Format/FormatTest.cpp
+++ b/clang/unittests/Format/FormatTest.cpp
@@ -28375,6 +28375,11 @@ TEST_F(FormatTest, BreakAfterAttributes) {
   verifyFormat("[[nodiscard]]\n"
                "Foo& operator-(Foo&);",
                Style);
+
+  Style.BreakBeforeBinaryOperators = FormatStyle::BOS_All;
+  verifyFormat("[[deprecated]]\n"
+               "void f() = delete;",
+               Style);
 }
 
 TEST_F(FormatTest, InsertNewlineAtEOF) {


        
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