clang-format: Properly reset BreakBeforeParameter when wrapping

operators to the new line.

Before:
  LOG_IF(aaa == //
         bbb)
      << a
      << b;

After:
  LOG_IF(aaa == //
         bbb)
      << a << b;

llvm-svn: 238911

diff --git a/clang/lib/Format/ContinuationIndenter.cpp b/clang/lib/Format/ContinuationIndenter.cpp
index 204bcc9..10a716c 100644 (file)
--- a/clang/lib/Format/ContinuationIndenter.cpp
+++ b/clang/lib/Format/ContinuationIndenter.cpp
@@ -463,6 +463,8 @@ unsigned ContinuationIndenter::addTokenOnNewLine(LineState &State,
   if (NextNonComment->is(tok::question) ||
       (PreviousNonComment && PreviousNonComment->is(tok::question)))
     State.Stack.back().BreakBeforeParameter = true;
+  if (Current.is(TT_BinaryOperator) && Current.CanBreakBefore)
+    State.Stack.back().BreakBeforeParameter = false;
 
   if (!DryRun) {
     unsigned Newlines = std::max(

diff --git a/clang/unittests/Format/FormatTest.cpp b/clang/unittests/Format/FormatTest.cpp
index 09e514e..69d6cee 100644 (file)
--- a/clang/unittests/Format/FormatTest.cpp
+++ b/clang/unittests/Format/FormatTest.cpp
@@ -4965,6 +4965,9 @@ TEST_F(FormatTest, AlignsPipes) {
                "                    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,\n"
                "                    aaaaaaaaaaaaaaaaaaaaa)\n"
                "             << aaaaaaaaaaaaaaaaaaaaaaaaaa;");
+  verifyFormat("LOG_IF(aaa == //\n"
+               "       bbb)\n"
+               "    << a << b;");
 
   // Breaking before the first "<<" is generally not desirable.
   verifyFormat(