[clang-format] Mark constexpr lambdas as lambda

Otherwise the brace was detected as a function brace, not wrong per se, but when directly calling the lambda the calling parens were put on the next line. Differential Revision: https://reviews.llvm.org/D129946
llvm · Jul 18, 2022 · d2eda49 · d2eda49
1 parent 3c18a8b
commit d2eda49
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diff --git a/clang/lib/Format/UnwrappedLineParser.cpp b/clang/lib/Format/UnwrappedLineParser.cpp
@@ -2119,6 +2119,7 @@ bool UnwrappedLineParser::tryToParseLambda() {
     case tok::amp:
     case tok::star:
     case tok::kw_const:
+    case tok::kw_constexpr:
     case tok::comma:
     case tok::less:
     case tok::greater:

diff --git a/clang/unittests/Format/TokenAnnotatorTest.cpp b/clang/unittests/Format/TokenAnnotatorTest.cpp
@@ -894,6 +894,13 @@ TEST_F(TokenAnnotatorTest, UnderstandsObjCBlock) {
   EXPECT_TOKEN(Tokens[9], tok::l_brace, TT_ObjCBlockLBrace);
 }
 
+TEST_F(TokenAnnotatorTest, UnderstandsLambdas) {
+  auto Tokens = annotate("[]() constexpr {}");
+  ASSERT_EQ(Tokens.size(), 8u) << Tokens;
+  EXPECT_TOKEN(Tokens[0], tok::l_square, TT_LambdaLSquare);
+  EXPECT_TOKEN(Tokens[5], tok::l_brace, TT_LambdaLBrace);
+}
+
 } // namespace
 } // namespace format
 } // namespace clang