Fix MSVC "not all control paths return a value" warning. NFCI.

llvm-svn: 357253

diff --git a/clang-tools-extra/clangd/Protocol.cpp b/clang-tools-extra/clangd/Protocol.cpp
index a7b3630..649110f 100644 (file)
--- a/clang-tools-extra/clangd/Protocol.cpp
+++ b/clang-tools-extra/clangd/Protocol.cpp
@@ -949,6 +949,7 @@ static const char *toString(OffsetEncoding OE) {
   case OffsetEncoding::UnsupportedEncoding:
     return "unknown";
   }
+  llvm_unreachable("Unknown clang.clangd.OffsetEncoding");
 }
 llvm::json::Value toJSON(const OffsetEncoding &OE) { return toString(OE); }
 bool fromJSON(const llvm::json::Value &V, OffsetEncoding &OE) {