[clang-format] Fix Bug 41407

Differential Revision: https://reviews.llvm.org/D60359

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@357851 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Format/ContinuationIndenter.cpp

@@ -1057,7 +1057,7 @@ unsigned ContinuationIndenter::getNewLineColumn(const LineState &State) {
   if (Current.is(TT_ProtoExtensionLSquare))
     return State.Stack.back().Indent;
   if (State.Stack.back().Indent == State.FirstIndent && PreviousNonComment &&
-      PreviousNonComment->isNot(tok::r_brace))
+      !PreviousNonComment->isOneOf(tok::r_brace, TT_CtorInitializerComma))
     // Ensure that we fall back to the continuation indent width instead of
     // just flushing continuations left.
     return State.Stack.back().Indent + Style.ContinuationIndentWidth;

unittests/Format/FormatTest.cpp

@@ -11946,6 +11946,13 @@ TEST_F(FormatTest, ConstructorInitializerIndentWidth) {
       "bool smaller = 1 < bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb(\n"
       "                       aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa);",
       Style);
+
+  Style.BreakConstructorInitializers = FormatStyle::BCIS_AfterColon;
+  verifyFormat(
+      "SomeClass::Constructor() :\n"
+      "aaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaa),\n"
+      "aaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaa) {}",
+      Style);
 }
 
 TEST_F(FormatTest, BreakConstructorInitializersBeforeComma) {