[lldb] Check if we actually have a Clang type in ObjCLanguage::GetPossibleFormattersMatches

Teemperor · Teemperor · commit bd7d9a85b8b0 · 2019-11-12T09:59:04.000+01:00
We call IsPossibleDynamicType but we also need to check if this is a Clang type,
otherwise other languages with dynamic types (like Swift) might end up being interpreted
as potential Obj-C dynamic types.
diff --git a/lldb/source/Plugins/Language/ObjC/ObjCLanguage.cpp b/lldb/source/Plugins/Language/ObjC/ObjCLanguage.cpp
@@ -887,7 +887,7 @@ ObjCLanguage::GetPossibleFormattersMatches(ValueObject &valobj,
   bool canBeObjCDynamic =
       compiler_type.IsPossibleDynamicType(nullptr, check_cpp, check_objc);
 
-  if (canBeObjCDynamic) {
+  if (canBeObjCDynamic && ClangUtil::IsClangType(compiler_type)) {
     do {
       lldb::ProcessSP process_sp = valobj.GetProcessSP();
       if (!process_sp)
