[clang-format] Do not merge short case labels if followed by a block.
Do not allow short case labels on a single line if the label is followed by a
left brace.
Fixes PR38926.
llvm-svn: 342708
diff --git a/clang/lib/Format/UnwrappedLineFormatter.cpp b/clang/lib/Format/UnwrappedLineFormatter.cpp
index 43d7150..76b495f4 100644
--- a/clang/lib/Format/UnwrappedLineFormatter.cpp
+++ b/clang/lib/Format/UnwrappedLineFormatter.cpp
@@ -428,6 +428,8 @@
if (Limit == 0 || I + 1 == E ||
I[1]->First->isOneOf(tok::kw_case, tok::kw_default))
return 0;
+ if (I[0]->Last->is(tok::l_brace) || I[1]->First->is(tok::l_brace))
+ return 0;
unsigned NumStmts = 0;
unsigned Length = 0;
bool EndsWithComment = false;