clang-format: Fix corner case in "if it saves columns"-calculation.

Before:
  aaaa
      .aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(
	  aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)
      .aaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);

After:
  aaaa.aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(
	  aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)
      .aaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);

llvm-svn: 256841

2 files changed, 5 insertions, 2 deletions

diff --git a/clang/lib/Format/ContinuationIndenter.cpp b/clang/lib/Format/ContinuationIndenter.cpp
index d81b0f611a7..8faab2869de 100644
--- a/clang/lib/Format/ContinuationIndenter.cpp
+++ b/clang/lib/Format/ContinuationIndenter.cpp
@@ -177,7 +177,7 @@ bool ContinuationIndenter::mustBreak(const LineState &State) {
     return true;
 
   unsigned NewLineColumn = getNewLineColumn(State);
-  if (State.Column < NewLineColumn)
+  if (State.Column <= NewLineColumn)
     return false;
 
   if (Current.isMemberAccess() &&
diff --git a/clang/unittests/Format/FormatTest.cpp b/clang/unittests/Format/FormatTest.cpp
index 8156dc7a3aa..c940bc75c80 100644
--- a/clang/unittests/Format/FormatTest.cpp
+++ b/clang/unittests/Format/FormatTest.cpp
@@ -4251,6 +4251,9 @@ TEST_F(FormatTest, FormatsBuilderPattern) {
                "    .aaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaa)\n"
                "    .aaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaa);",
                getLLVMStyleWithColumns(59));
+  verifyFormat("aaaa.aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+               "        aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)\n"
+               "    .aaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);");
 }
 
 TEST_F(FormatTest, BreaksAccordingToOperatorPrecedence) {
@@ -8305,7 +8308,7 @@ TEST_F(FormatTest, ConfigurableUseOfTab) {
                "\taaaaaaaaaaaaaaaaaaaaaaaaaaaa();\n"
                "};",
                Tab);
-  verifyFormat("enum A {\n"
+  verifyFormat("enum AA {\n"
                "\ta1, // Force multiple lines\n"
                "\ta2,\n"
                "\ta3\n"