clang-format: Always add space before lambda-{

Before:
  int c = []() -> int *{ return 2; }();

After:
  int c = []() -> int * { return 2; }();

Based on patch by James Dennett (http://reviews.llvm.org/D10410), thank you!

llvm-svn: 239600

2 files changed, 2 insertions, 0 deletions

diff --git a/clang/lib/Format/TokenAnnotator.cpp b/clang/lib/Format/TokenAnnotator.cpp
index 3e8659ef853..8ffd67f0d11 100644
--- a/clang/lib/Format/TokenAnnotator.cpp
+++ b/clang/lib/Format/TokenAnnotator.cpp
@@ -1800,6 +1800,7 @@ bool TokenAnnotator::spaceRequiredBetween(const AnnotatedLine &Line,
     return true;
   if (Left.is(TT_PointerOrReference))
     return Right.Tok.isLiteral() || Right.is(TT_BlockComment) ||
+           (Right.is(tok::l_brace) && Right.BlockKind == BK_Block) ||
            (!Right.isOneOf(TT_PointerOrReference, TT_ArraySubscriptLSquare,
                            tok::l_paren) &&
             (Style.PointerAlignment != FormatStyle::PAS_Right &&
diff --git a/clang/unittests/Format/FormatTest.cpp b/clang/unittests/Format/FormatTest.cpp
index e6df49d4590..f561475014a 100644
--- a/clang/unittests/Format/FormatTest.cpp
+++ b/clang/unittests/Format/FormatTest.cpp
@@ -10098,6 +10098,7 @@ TEST_F(FormatTest, FormatsLambdas) {
 
   // Lambdas with return types.
   verifyFormat("int c = []() -> int { return 2; }();\n");
+  verifyFormat("int c = []() -> int * { return 2; }();\n");
   verifyFormat("int c = []() -> vector<int> { return {2}; }();\n");
   verifyFormat("Foo([]() -> std::vector<int> { return {2}; }());");
   verifyGoogleFormat("auto a = [&b, c](D* d) -> D* {};");