clang-format: Fixes spaces in case statements.

This fixes llvm.org/PR19482.

Before:
  switch (a) {
    case(B) :
      return;
  }

After:
  switch (a) {
    case (B):
      return;
  }

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@207402 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 7 insertions, 2 deletions

diff --git a/lib/Format/TokenAnnotator.cpp b/lib/Format/TokenAnnotator.cpp
index d2b79e544e..54961218a2 100644
--- a/lib/Format/TokenAnnotator.cpp
+++ b/lib/Format/TokenAnnotator.cpp
@@ -370,7 +370,8 @@ private:
       if (Tok->Previous == NULL)
         return false;
       // Colons from ?: are handled in parseConditional().
-      if (Tok->Previous->is(tok::r_paren) && Contexts.size() == 1) {
+      if (Tok->Previous->is(tok::r_paren) && Contexts.size() == 1 &&
+          Line.First->isNot(tok::kw_case)) {
         Tok->Type = TT_CtorInitializerColon;
       } else if (Contexts.back().ColonIsDictLiteral) {
         Tok->Type = TT_DictLiteral;
@@ -1429,7 +1430,7 @@ bool TokenAnnotator::spaceRequiredBetween(const AnnotatedLine &Line,
                         tok::semi) ||
            (Style.SpaceBeforeParens != FormatStyle::SBPO_Never &&
             (Left.isOneOf(tok::kw_if, tok::kw_for, tok::kw_while,
-                          tok::kw_switch, tok::kw_catch) ||
+                          tok::kw_switch, tok::kw_catch, tok::kw_case) ||
              Left.IsForEachMacro)) ||
            (Style.SpaceBeforeParens == FormatStyle::SBPO_Always &&
             Left.isOneOf(tok::identifier, tok::kw___attribute) &&
diff --git a/unittests/Format/FormatTest.cpp b/unittests/Format/FormatTest.cpp
index 7d5ad9ba14..c006c399f3 100644
--- a/unittests/Format/FormatTest.cpp
+++ b/unittests/Format/FormatTest.cpp
@@ -618,6 +618,10 @@ TEST_F(FormatTest, FormatsSwitchStatement) {
                "    break;\n"
                "  }\n"
                "});");
+  verifyFormat("switch (a) {\n"
+               "case (b):\n"
+               "  return;\n"
+               "}");
 }
 
 TEST_F(FormatTest, CaseRanges) {