Remove size_t return parameter from FindTypes

[aprantl]

Summary

In r368345 I accidentally introduced a regression that would over-report the number of matches found by FIndTypes if the DeclContext Filter was hit.

This patch simply removes the size_t return parameter altogether — it's not that useful.

rdar://problem/55500457

[aprantl]

Pavel suggested to just remove the return value altogether, which would be even better. I'll give that a try.

[labath]

cool

lldb/include/lldb/Core/Module.h

public:
   ///     exactly. If \b false, \a type_name is a partially qualified
   ///     name where the leading namespaces or classes can be
   ///     omitted to make finding types that a user may type
   ///     easier.
   ///
   /// \param[out] type_list
   ///     A type list gets populated with any matches.
   ///
-  /// \return
-  ///     The number of matches added to \a type_list.
-  size_t
+  void
   FindTypes(ConstString type_name, bool exact_match, size_t max_matches,
             llvm::DenseSet<lldb_private::SymbolFile *> &searched_symbol_files,
             TypeList &types);
 
   /// Find types by name.
   ///
   /// This behaves like the other FindTypes method but allows to
   /// specify a DeclContext and a language for the type being searched
   /// for.
-  size_t FindTypes(llvm::ArrayRef<CompilerContext> pattern,
-                   LanguageSet languages, TypeMap &types);
+  void FindTypes(llvm::ArrayRef<CompilerContext> pattern, LanguageSet languages,
+                 TypeMap &types);
 
   lldb::TypeSP FindFirstType(const SymbolContext &sc,
                              ConstString type_name, bool exact_match);
 
   /// Find types by name that are in a namespace. This function is used by the
   /// expression parser when searches need to happen in an exact namespace
   /// scope.
   ///
   /// \param[in] type_name
   ///     The name of a type within a namespace that should not include
   ///     any qualifying namespaces (just a type basename).
   ///
   /// \param[in] namespace_decl
   ///     The namespace declaration that this type must exist in.
   ///
   /// \param[out] type_list
   ///     A type list gets populated with any matches.
   ///
-  /// \return
-  ///     The number of matches added to \a type_list.
-  size_t FindTypesInNamespace(ConstString type_name,
-                              const CompilerDeclContext *parent_decl_ctx,
-                              size_t max_matches, TypeList &type_list);
+  void FindTypesInNamespace(ConstString type_name,
 
   /// Get const accessor for the module architecture.
   ///
   /// \return
   ///     A const reference to the architecture object.
   const ArchSpec &GetArchitecture() const;
 
   /// Get const accessor for the module file specification.
protected:
 
   friend class ModuleList;
   friend class ObjectFile;
   friend class SymbolFile;
 
 private:
   Module(); // Only used internally by CreateJITModule ()
 
-  size_t FindTypes_Impl(
+  void FindTypes_Impl(
       ConstString name, const CompilerDeclContext *parent_decl_ctx,
       size_t max_matches,
       llvm::DenseSet<lldb_private::SymbolFile *> &searched_symbol_files,
       TypeMap &types);
 
   DISALLOW_COPY_AND_ASSIGN(Module);
 };
 
 } // namespace lldb_private
 
 #endif // liblldb_Module_h_

lldb/include/lldb/Core/ModuleList.h

public:
   ///
   /// \param[in] udt_name
   ///     If the encoding is a user defined type, specify the name
   ///     of the user defined type ("struct", "union", "class", etc).
   ///
   /// \param[out] type_list
   ///     A type list gets populated with any matches.
   ///
-  /// \return
-  ///     The number of matches added to \a type_list.
-  size_t FindTypes(Module *search_first, ConstString name,
-                   bool name_is_fully_qualified, size_t max_matches,
-                   llvm::DenseSet<SymbolFile *> &searched_symbol_files,
-                   TypeList &types) const;
+  void FindTypes(Module *search_first, ConstString name,
 
   bool FindSourceFile(const FileSpec &orig_spec, FileSpec &new_spec) const;
 
   /// Find addresses by file/line
   ///
   /// \param[in] target_sp
   ///     The target the addresses are desired for.
   ///

lldb/include/lldb/Symbol/SymbolFile.h

public:
   virtual uint32_t FindFunctions(ConstString name,
                                  const CompilerDeclContext *parent_decl_ctx,
                                  lldb::FunctionNameType name_type_mask,
                                  bool include_inlines, bool append,
                                  SymbolContextList &sc_list);
   virtual uint32_t FindFunctions(const RegularExpression &regex,
                                  bool include_inlines, bool append,
                                  SymbolContextList &sc_list);
-  virtual uint32_t
+  virtual void
   FindTypes(ConstString name, const CompilerDeclContext *parent_decl_ctx,
             uint32_t max_matches,
             llvm::DenseSet<lldb_private::SymbolFile *> &searched_symbol_files,
             TypeMap &types);
 
   /// Find types specified by a CompilerContextPattern.
   /// \param languages    Only return results in these languages.
-  virtual size_t FindTypes(llvm::ArrayRef<CompilerContext> pattern,
+  virtual void FindTypes(llvm::ArrayRef<CompilerContext> pattern,
                            LanguageSet languages, TypeMap &types);
 
   virtual void
   GetMangledNamesForFunction(const std::string &scope_qualified_name,
                              std::vector<ConstString> &mangled_names);
 
-  virtual size_t GetTypes(lldb_private::SymbolContextScope *sc_scope,
-                          lldb::TypeClass type_mask,
-                          lldb_private::TypeList &type_list) = 0;
+  virtual void GetTypes(lldb_private::SymbolContextScope *sc_scope,
 
   virtual void PreloadSymbols();
 
   virtual llvm::Expected<lldb_private::TypeSystem &>
   GetTypeSystemForLanguage(lldb::LanguageType language);
 
   virtual CompilerDeclContext
   FindNamespace(ConstString name,

lldb/include/lldb/Symbol/TypeList.h

public:
   TypeList();
 
   virtual ~TypeList();
 
   void Clear();
 
   void Dump(Stream *s, bool show_context);
 
-  //    lldb::TypeSP
-  //    FindType(lldb::user_id_t uid);
-
   TypeList FindTypes(ConstString name);
 
   void Insert(const lldb::TypeSP &type);
 
   uint32_t GetSize() const;
 
+  bool Empty() const { return !GetSize(); }
+
   lldb::TypeSP GetTypeAtIndex(uint32_t idx);
 
   typedef std::vector<lldb::TypeSP> collection;
   typedef AdaptedIterable<collection, lldb::TypeSP, vector_adapter>
       TypeIterable;
 
   TypeIterable Types() { return TypeIterable(m_types); }
 

lldb/source/API/SBModule.cpp

lldb::SBTypeList SBModule::FindTypes(const char *type) {
   SBTypeList retval;
 
   ModuleSP module_sp(GetSP());
   if (type && module_sp) {
     TypeList type_list;
     const bool exact_match = false;
     ConstString name(type);
     llvm::DenseSet<SymbolFile *> searched_symbol_files;
-    const uint32_t num_matches = module_sp->FindTypes(
-        name, exact_match, UINT32_MAX, searched_symbol_files, type_list);
+    module_sp->FindTypes(name, exact_match, UINT32_MAX, searched_symbol_files,
+                         type_list);
 
-    if (num_matches > 0) {
-      for (size_t idx = 0; idx < num_matches; idx++) {
-        TypeSP type_sp(type_list.GetTypeAtIndex(idx));
-        if (type_sp)
-          retval.Append(SBType(type_sp));
-      }
-    } else {
+    if (type_list.Empty()) {
       auto type_system_or_err =
           module_sp->GetTypeSystemForLanguage(eLanguageTypeC);
       if (auto err = type_system_or_err.takeError()) {
         llvm::consumeError(std::move(err));
       } else {
         CompilerType compiler_type =
             type_system_or_err->GetBuiltinTypeByName(name);
         if (compiler_type)
           retval.Append(SBType(compiler_type));
       }
+    } else {
+      for (size_t idx = 0; idx < type_list.GetSize(); idx++) {
+        TypeSP type_sp(type_list.GetTypeAtIndex(idx));
+        if (type_sp)
+          retval.Append(SBType(type_sp));
+      }
     }
   }
-
   return LLDB_RECORD_RESULT(retval);
 }
 
 lldb::SBType SBModule::GetTypeByID(lldb::user_id_t uid) {
   LLDB_RECORD_METHOD(lldb::SBType, SBModule, GetTypeByID, (lldb::user_id_t),
                      uid);
 
   ModuleSP module_sp(GetSP());

lldb/source/API/SBTarget.cpp

lldb::SBTypeList SBTarget::FindTypes(const char *typename_cstr) {
   SBTypeList sb_type_list;
   TargetSP target_sp(GetSP());
   if (typename_cstr && typename_cstr[0] && target_sp) {
     ModuleList &images = target_sp->GetImages();
     ConstString const_typename(typename_cstr);
     bool exact_match = false;
     TypeList type_list;
     llvm::DenseSet<SymbolFile *> searched_symbol_files;
-    uint32_t num_matches =
-        images.FindTypes(nullptr, const_typename, exact_match, UINT32_MAX,
-                         searched_symbol_files, type_list);
 
-    if (num_matches > 0) {
-      for (size_t idx = 0; idx < num_matches; idx++) {
-        TypeSP type_sp(type_list.GetTypeAtIndex(idx));
-        if (type_sp)
-          sb_type_list.Append(SBType(type_sp));
-      }
-    }
+    for (size_t idx = 0; idx < type_list.GetSize(); idx++) {
 
     // Try the loaded language runtimes
     if (auto process_sp = target_sp->GetProcessSP()) {
       for (auto *runtime : process_sp->GetLanguageRuntimes()) {
         if (auto *vendor = runtime->GetDeclVendor()) {
           auto types =
               vendor->FindTypes(const_typename, /*max_matches*/ UINT32_MAX);
           for (auto type : types)

lldb/source/Commands/CommandObjectTarget.cpp

if (module && name && name[0]) {
     return num_matches;
   }
   return 0;
 }
 
 static size_t LookupTypeInModule(CommandInterpreter &interpreter, Stream &strm,
                                  Module *module, const char *name_cstr,
                                  bool name_is_regex) {
-  if (module && name_cstr && name_cstr[0]) {
-    TypeList type_list;
+  if (module && name_cstr && name_cstr[0]) {
     const uint32_t max_num_matches = UINT32_MAX;
     size_t num_matches = 0;
     bool name_is_fully_qualified = false;
 
     ConstString name(name_cstr);
     llvm::DenseSet<lldb_private::SymbolFile *> searched_symbol_files;
-    num_matches =
-        module->FindTypes(name, name_is_fully_qualified, max_num_matches,
-                          searched_symbol_files, type_list);
 
-    if (num_matches) {
-      strm.Indent();
-      strm.Printf("%" PRIu64 " match%s found in ", (uint64_t)num_matches,
-                  num_matches > 1 ? "es" : "");
-      DumpFullpath(strm, &module->GetFileSpec(), 0);
-      strm.PutCString(":\n");
-      for (TypeSP type_sp : type_list.Types()) {
-        if (type_sp) {
-          // Resolve the clang type so that any forward references to types
-          // that haven't yet been parsed will get parsed.
-          type_sp->GetFullCompilerType();
-          type_sp->GetDescription(&strm, eDescriptionLevelFull, true);
-          // Print all typedef chains
-          TypeSP typedef_type_sp(type_sp);
-          TypeSP typedefed_type_sp(typedef_type_sp->GetTypedefType());
-          while (typedefed_type_sp) {
-            strm.EOL();
-            strm.Printf("     typedef '%s': ",
-                        typedef_type_sp->GetName().GetCString());
-            typedefed_type_sp->GetFullCompilerType();
-            typedefed_type_sp->GetDescription(&strm, eDescriptionLevelFull,
-                                              true);
-            typedef_type_sp = typedefed_type_sp;
-            typedefed_type_sp = typedef_type_sp->GetTypedefType();
-          }
-        }
-        strm.EOL();
-      }
-    }
-    return num_matches;
-  }
-  return 0;
+    if (type_list.Empty())
+      return 0;
+
+      if (!type_sp)
+        continue;
+        typedefed_type_sp->GetDescription(&strm, eDescriptionLevelFull, true);
+  return type_list.GetSize();
 }
 
 static size_t LookupTypeHere(CommandInterpreter &interpreter, Stream &strm,
                              Module &module, const char *name_cstr,
                              bool name_is_regex) {
   TypeList type_list;
   const uint32_t max_num_matches = UINT32_MAX;
-  size_t num_matches = 1;
   bool name_is_fully_qualified = false;
 
   ConstString name(name_cstr);
   llvm::DenseSet<SymbolFile *> searched_symbol_files;
-  num_matches = module.FindTypes(name, name_is_fully_qualified, max_num_matches,
-                                 searched_symbol_files, type_list);
+  module.FindTypes(name, name_is_fully_qualified, max_num_matches,
 
-  if (num_matches) {
-    strm.Indent();
-    strm.PutCString("Best match found in ");
-    DumpFullpath(strm, &module.GetFileSpec(), 0);
-    strm.PutCString(":\n");
+  if (type_list.Empty())
+    return 0;
+
 
-    TypeSP type_sp(type_list.GetTypeAtIndex(0));
-    if (type_sp) {
-      // Resolve the clang type so that any forward references to types that
-      // haven't yet been parsed will get parsed.
-      type_sp->GetFullCompilerType();
-      type_sp->GetDescription(&strm, eDescriptionLevelFull, true);
-      // Print all typedef chains
-      TypeSP typedef_type_sp(type_sp);
-      TypeSP typedefed_type_sp(typedef_type_sp->GetTypedefType());
-      while (typedefed_type_sp) {
-        strm.EOL();
-        strm.Printf("     typedef '%s': ",
-                    typedef_type_sp->GetName().GetCString());
-        typedefed_type_sp->GetFullCompilerType();
-        typedefed_type_sp->GetDescription(&strm, eDescriptionLevelFull, true);
-        typedef_type_sp = typedefed_type_sp;
-        typedefed_type_sp = typedef_type_sp->GetTypedefType();
-      }
-    }
-    strm.EOL();
-  }
-  return num_matches;
+  return type_list.GetSize();
 }
 
 static uint32_t LookupFileAndLineInModule(CommandInterpreter &interpreter,
                                           Stream &strm, Module *module,
                                           const FileSpec &file_spec,
                                           uint32_t line, bool check_inlines,
                                           bool verbose) {
   if (module && file_spec) {

lldb/source/Core/Module.cpp

for (size_t n = 0; n < resolver.GetNumberOfAddresses(); n++) {
     Function *f = addr.CalculateSymbolContextFunction();
     if (f && f == function)
       output_local.push_back(addr);
     else
       output_extern.push_back(addr);
   }
 }
 
-size_t Module::FindTypes_Impl(
+void Module::FindTypes_Impl(
     ConstString name, const CompilerDeclContext *parent_decl_ctx,
     size_t max_matches,
     llvm::DenseSet<lldb_private::SymbolFile *> &searched_symbol_files,
     TypeMap &types) {
   static Timer::Category func_cat(LLVM_PRETTY_FUNCTION);
   Timer scoped_timer(func_cat, LLVM_PRETTY_FUNCTION);
   if (SymbolFile *symbols = GetSymbolFile())
-    return symbols->FindTypes(name, parent_decl_ctx, max_matches,
-                              searched_symbol_files, types);
-  return 0;
+    symbols->FindTypes(name, parent_decl_ctx, max_matches,
 }
 
-size_t Module::FindTypesInNamespace(ConstString type_name,
-                                    const CompilerDeclContext *parent_decl_ctx,
-                                    size_t max_matches, TypeList &type_list) {
+void Module::FindTypesInNamespace(ConstString type_name,
   TypeMap types_map;
   llvm::DenseSet<lldb_private::SymbolFile *> searched_symbol_files;
-  size_t num_types = FindTypes_Impl(type_name, parent_decl_ctx, max_matches,
-                                    searched_symbol_files, types_map);
-  if (num_types > 0) {
+  FindTypes_Impl(type_name, parent_decl_ctx, max_matches, searched_symbol_files,
+                 types_map);
+  if (types_map.GetSize()) {
     SymbolContext sc;
     sc.module_sp = shared_from_this();
     sc.SortTypeList(types_map, type_list);
   }
-  return num_types;
 }
 
 lldb::TypeSP Module::FindFirstType(const SymbolContext &sc,
                                    ConstString name, bool exact_match) {
   TypeList type_list;
   llvm::DenseSet<lldb_private::SymbolFile *> searched_symbol_files;
-  const size_t num_matches =
-      FindTypes(name, exact_match, 1, searched_symbol_files, type_list);
-  if (num_matches)
+  if (type_list.GetSize())
     return type_list.GetTypeAtIndex(0);
   return TypeSP();
 }
 
-size_t Module::FindTypes(
+void Module::FindTypes(
     ConstString name, bool exact_match, size_t max_matches,
     llvm::DenseSet<lldb_private::SymbolFile *> &searched_symbol_files,
     TypeList &types) {
-  size_t num_matches = 0;
   const char *type_name_cstr = name.GetCString();
   llvm::StringRef type_scope;
   llvm::StringRef type_basename;
   TypeClass type_class = eTypeClassAny;
   TypeMap typesmap;
 
   if (Type::GetTypeScopeAndBasename(type_name_cstr, type_scope, type_basename,
                                     type_class)) {
     // Check if "name" starts with "::" which means the qualified type starts
     // from the root namespace and implies and exact match. The typenames we
     // get back from clang do not start with "::" so we need to strip this off
     // in order to get the qualified names to match
     exact_match = type_scope.consume_front("::");
 
     ConstString type_basename_const_str(type_basename);
-    if (FindTypes_Impl(type_basename_const_str, nullptr, max_matches,
-                       searched_symbol_files, typesmap)) {
+    FindTypes_Impl(type_basename_const_str, nullptr, max_matches,
+                   searched_symbol_files, typesmap);
+    if (typesmap.GetSize())
       typesmap.RemoveMismatchedTypes(type_scope, type_basename, type_class,
                                      exact_match);
-      num_matches = typesmap.GetSize();
-    }
   } else {
     // The type is not in a namespace/class scope, just search for it by
     // basename
     if (type_class != eTypeClassAny && !type_basename.empty()) {
       // The "type_name_cstr" will have been modified if we have a valid type
       // class prefix (like "struct", "class", "union", "typedef" etc).
       FindTypes_Impl(ConstString(type_basename), nullptr, UINT_MAX,
                      searched_symbol_files, typesmap);
       typesmap.RemoveMismatchedTypes(type_scope, type_basename, type_class,
                                      exact_match);
-      num_matches = typesmap.GetSize();
     } else {
-      num_matches = FindTypes_Impl(name, nullptr, UINT_MAX,
-                                   searched_symbol_files, typesmap);
+      FindTypes_Impl(name, nullptr, UINT_MAX, searched_symbol_files, typesmap);
       if (exact_match) {
         std::string name_str(name.AsCString(""));
         typesmap.RemoveMismatchedTypes(type_scope, name_str, type_class,
                                        exact_match);
-        num_matches = typesmap.GetSize();
       }
     }
   }
-  if (num_matches > 0) {
+  if (typesmap.GetSize()) {
     SymbolContext sc;
     sc.module_sp = shared_from_this();
     sc.SortTypeList(typesmap, types);
   }
-  return num_matches;
 }
 
-size_t Module::FindTypes(llvm::ArrayRef<CompilerContext> pattern,
-                         LanguageSet languages, TypeMap &types) {
+void Module::FindTypes(llvm::ArrayRef<CompilerContext> pattern,
   static Timer::Category func_cat(LLVM_PRETTY_FUNCTION);
   Timer scoped_timer(func_cat, LLVM_PRETTY_FUNCTION);
   if (SymbolFile *symbols = GetSymbolFile())
-    return symbols->FindTypes(pattern, languages, types);
-  return 0;
+    symbols->FindTypes(pattern, languages, types);
 }
 
 SymbolFile *Module::GetSymbolFile(bool can_create, Stream *feedback_strm) {
   if (!m_did_load_symfile.load()) {
     std::lock_guard<std::recursive_mutex> guard(m_mutex);
     if (!m_did_load_symfile.load() && can_create) {
       ObjectFile *obj_file = GetObjectFile();
       if (obj_file != nullptr) {

lldb/source/Core/ModuleList.cpp

 #include "lldb/Core/ModuleSpec.h"
 #include "lldb/Host/FileSystem.h"
 #include "lldb/Interpreter/OptionValueFileSpec.h"
 #include "lldb/Interpreter/OptionValueProperties.h"
 #include "lldb/Interpreter/Property.h"
 #include "lldb/Symbol/LocateSymbolFile.h"
 #include "lldb/Symbol/ObjectFile.h"
 #include "lldb/Symbol/SymbolContext.h"
+#include "lldb/Symbol/TypeList.h"
 #include "lldb/Symbol/VariableList.h"
 #include "lldb/Utility/ArchSpec.h"
 #include "lldb/Utility/ConstString.h"
 #include "lldb/Utility/Log.h"
 #include "lldb/Utility/Logging.h"
 #include "lldb/Utility/UUID.h"
 #include "lldb/lldb-defines.h"
 

 class Stream;
 }
 namespace lldb_private {
 class SymbolFile;
 }
 namespace lldb_private {
 class Target;
 }
-namespace lldb_private {
-class TypeList;
-}
 
 using namespace lldb;
 using namespace lldb_private;
 
 namespace {
 
 #define LLDB_PROPERTIES_modulelist
 #include "CoreProperties.inc"
for (pos = m_modules.begin(); pos != end; ++pos) {
         module_sp = (*pos);
         break;
       }
     }
   }
   return module_sp;
 }
 
-size_t
-ModuleList::FindTypes(Module *search_first, ConstString name,
+void ModuleList::FindTypes(Module *search_first, ConstString name,
                            bool name_is_fully_qualified, size_t max_matches,
                            llvm::DenseSet<SymbolFile *> &searched_symbol_files,
                            TypeList &types) const {
   std::lock_guard<std::recursive_mutex> guard(m_modules_mutex);
 
-  size_t total_matches = 0;
   collection::const_iterator pos, end = m_modules.end();
   if (search_first) {
     for (pos = m_modules.begin(); pos != end; ++pos) {
       if (search_first == pos->get()) {
-        total_matches +=
-            search_first->FindTypes(name, name_is_fully_qualified, max_matches,
-                                    searched_symbol_files, types);
 
-        if (total_matches >= max_matches)
-          break;
+        if (types.GetSize() >= max_matches)
+          return;
       }
     }
   }
 
-  if (total_matches < max_matches) {
-    for (pos = m_modules.begin(); pos != end; ++pos) {
-      // Search the module if the module is not equal to the one in the symbol
-      // context "sc". If "sc" contains a empty module shared pointer, then the
-      // comparison will always be true (valid_module_ptr != nullptr).
-      if (search_first != pos->get())
-        total_matches +=
-            (*pos)->FindTypes(name, name_is_fully_qualified, max_matches,
-                              searched_symbol_files, types);
 
-      if (total_matches >= max_matches)
-        break;
-    }
+    if (types.GetSize() >= max_matches)
+      return;
   }
-
-  return total_matches;
 }
 
 bool ModuleList::FindSourceFile(const FileSpec &orig_spec,
                                 FileSpec &new_spec) const {
   std::lock_guard<std::recursive_mutex> guard(m_modules_mutex);
   collection::const_iterator pos, end = m_modules.end();
   for (pos = m_modules.begin(); pos != end; ++pos) {
     if ((*pos)->FindSourceFile(orig_spec, new_spec))

lldb/source/Plugins/LanguageRuntime/CPlusPlus/ItaniumABI/ItaniumABILanguageRuntime.cpp

if (!target.GetSectionLoadList().IsEmpty()) {
             // prefixing it with the root namespace:
             std::string lookup_name("::");
             lookup_name.append(class_name);
             
             type_info.SetName(class_name);
             const bool exact_match = true;
             TypeList class_types;
 
-            uint32_t num_matches = 0;
             // First look in the module that the vtable symbol came from and
             // look for a single exact match.
             llvm::DenseSet<SymbolFile *> searched_symbol_files;
-            if (sc.module_sp) {
-              num_matches = sc.module_sp->FindTypes(
-                  ConstString(lookup_name), exact_match, 1,
+            if (sc.module_sp)
+              sc.module_sp->FindTypes(ConstString(lookup_name), exact_match, 1,
                                       searched_symbol_files, class_types);
-            }
 
             // If we didn't find a symbol, then move on to the entire module
             // list in the target and get as many unique matches as possible
-            if (num_matches == 0) {
-              num_matches = target.GetImages().FindTypes(
-                  nullptr, ConstString(lookup_name), exact_match, UINT32_MAX,
+            if (class_types.Empty())
+              target.GetImages().FindTypes(nullptr, ConstString(lookup_name),
+                                           exact_match, UINT32_MAX,
                                            searched_symbol_files, class_types);
-            }
 
             lldb::TypeSP type_sp;
-            if (num_matches == 0) {
+            if (class_types.Empty()) {
               LLDB_LOGF(log, "0x%16.16" PRIx64 ": is not dynamic\n",
                         original_ptr);
               return TypeAndOrName();
             }
-            if (num_matches == 1) {
+            if (class_types.GetSize() == 1) {
               type_sp = class_types.GetTypeAtIndex(0);
               if (type_sp) {
                 if (ClangASTContext::IsCXXClassType(
                         type_sp->GetForwardCompilerType())) {
                   LLDB_LOGF(
                       log,
                       "0x%16.16" PRIx64
                       ": static-type = '%s' has dynamic type: uid={0x%" PRIx64
                       "}, type-name='%s'\n",
                       original_ptr, in_value.GetTypeName().AsCString(),
                       type_sp->GetID(), type_sp->GetName().GetCString());
                   type_info.SetTypeSP(type_sp);
                 }
               }
-            } else if (num_matches > 1) {
+            } else {
               size_t i;
               if (log) {
-                for (i = 0; i < num_matches; i++) {
+                for (i = 0; i < class_types.GetSize(); i++) {
                   type_sp = class_types.GetTypeAtIndex(i);
                   if (type_sp) {
                     LLDB_LOGF(
                         log,
                         "0x%16.16" PRIx64
                         ": static-type = '%s' has multiple matching dynamic "
                         "types: uid={0x%" PRIx64 "}, type-name='%s'\n",
                         original_ptr, in_value.GetTypeName().AsCString(),
                         type_sp->GetID(), type_sp->GetName().GetCString());
                   }
                 }
               }
 
-              for (i = 0; i < num_matches; i++) {
+              for (i = 0; i < class_types.GetSize(); i++) {
                 type_sp = class_types.GetTypeAtIndex(i);
                 if (type_sp) {
                   if (ClangASTContext::IsCXXClassType(
                           type_sp->GetForwardCompilerType())) {
                     LLDB_LOGF(
                         log,
                         "0x%16.16" PRIx64 ": static-type = '%s' has multiple "
                         "matching dynamic types, picking "
                         "this one: uid={0x%" PRIx64 "}, type-name='%s'\n",
                         original_ptr, in_value.GetTypeName().AsCString(),
                         type_sp->GetID(), type_sp->GetName().GetCString());
                     type_info.SetTypeSP(type_sp);
                   }
                 }
               }
 
-              if (log && i == num_matches) {
+              if (log) {
                 LLDB_LOGF(log,
                           "0x%16.16" PRIx64
                           ": static-type = '%s' has multiple matching dynamic "
                           "types, didn't find a C++ match\n",
                           original_ptr, in_value.GetTypeName().AsCString());
               }
             }
             if (type_info)

lldb/source/Plugins/LanguageRuntime/ObjC/ObjCLanguageRuntime.cpp

if (matching_symbols) {
     if (!module_sp)
       return TypeSP();
 
     const bool exact_match = true;
     const uint32_t max_matches = UINT32_MAX;
     TypeList types;
 
     llvm::DenseSet<SymbolFile *> searched_symbol_files;
-    const uint32_t num_types = module_sp->FindTypes(
-        name, exact_match, max_matches, searched_symbol_files, types);
+    module_sp->FindTypes(name, exact_match, max_matches, searched_symbol_files,
+                         types);
 
-    if (num_types) {
-      uint32_t i;
-      for (i = 0; i < num_types; ++i) {
-        TypeSP type_sp(types.GetTypeAtIndex(i));
+    for (uint32_t i = 0; i < types.GetSize(); ++i) {
 
-        if (ClangASTContext::IsObjCObjectOrInterfaceType(
-                type_sp->GetForwardCompilerType())) {
-          if (type_sp->IsCompleteObjCClass()) {
-            m_complete_class_cache[name] = type_sp;
-            return type_sp;
-          }
-        }
-      }
-    }
-  }
   m_negative_complete_class_cache.insert(name);
   return TypeSP();
 }
 
 size_t ObjCLanguageRuntime::GetByteOffsetForIvar(CompilerType &parent_qual_type,
                                                  const char *ivar_name) {
   return LLDB_INVALID_IVAR_OFFSET;
 }

lldb/source/Plugins/SymbolFile/Breakpad/SymbolFileBreakpad.h

uint32_t ResolveSymbolContext(const Address &so_addr,
                                 lldb::SymbolContextItem resolve_scope,
                                 SymbolContext &sc) override;
 
   uint32_t ResolveSymbolContext(const FileSpec &file_spec, uint32_t line,
                                 bool check_inlines,
                                 lldb::SymbolContextItem resolve_scope,
                                 SymbolContextList &sc_list) override;
 
-  size_t GetTypes(SymbolContextScope *sc_scope, lldb::TypeClass type_mask,
-                  TypeList &type_list) override {
-    return 0;
-  }
+  void GetTypes(SymbolContextScope *sc_scope, lldb::TypeClass type_mask,
+                TypeList &type_list) override {}
 
   uint32_t FindFunctions(ConstString name,
                          const CompilerDeclContext *parent_decl_ctx,
                          lldb::FunctionNameType name_type_mask,
                          bool include_inlines, bool append,
                          SymbolContextList &sc_list) override;
 
   uint32_t FindFunctions(const RegularExpression &regex, bool include_inlines,
                          bool append, SymbolContextList &sc_list) override;
 
-  uint32_t FindTypes(ConstString name,
-                     const CompilerDeclContext *parent_decl_ctx,
-                     uint32_t max_matches,
-                     llvm::DenseSet<SymbolFile *> &searched_symbol_files,
-                     TypeMap &types) override;
+  void FindTypes(ConstString name, const CompilerDeclContext *parent_decl_ctx,
 
-  size_t FindTypes(llvm::ArrayRef<CompilerContext> pattern,
-                   LanguageSet languages, TypeMap &types) override;
+  void FindTypes(llvm::ArrayRef<CompilerContext> pattern, LanguageSet languages,
+                 TypeMap &types) override;
 
   llvm::Expected<TypeSystem &>
   GetTypeSystemForLanguage(lldb::LanguageType language) override {
     return llvm::make_error<llvm::StringError>(
         "SymbolFileBreakpad does not support GetTypeSystemForLanguage",
         llvm::inconvertibleErrorCode());
   }
 

lldb/source/Plugins/SymbolFile/Breakpad/SymbolFileBreakpad.cpp

uint32_t SymbolFileBreakpad::FindFunctions(const RegularExpression &regex,
                                            bool include_inlines, bool append,
                                            SymbolContextList &sc_list) {
   // TODO
   if (!append)
     sc_list.Clear();
   return sc_list.GetSize();
 }
 
-uint32_t SymbolFileBreakpad::FindTypes(
+void SymbolFileBreakpad::FindTypes(
     ConstString name, const CompilerDeclContext *parent_decl_ctx,
     uint32_t max_matches, llvm::DenseSet<SymbolFile *> &searched_symbol_files,
-    TypeMap &types) {
-  return 0;
-}
+    TypeMap &types) {}
 
-size_t SymbolFileBreakpad::FindTypes(llvm::ArrayRef<CompilerContext> pattern,
-                                     LanguageSet languages, TypeMap &types) {
-  return 0;
-}
+void SymbolFileBreakpad::FindTypes(llvm::ArrayRef<CompilerContext> pattern,
+                                   LanguageSet languages, TypeMap &types) {}
 
 void SymbolFileBreakpad::AddSymbols(Symtab &symtab) {
   Log *log = GetLogIfAllCategoriesSet(LIBLLDB_LOG_SYMBOLS);
   Module &module = *m_objfile_sp->GetModule();
   addr_t base = GetBaseFileAddress();
   if (base == LLDB_INVALID_ADDRESS) {
     LLDB_LOG(log, "Unable to fetch the base address of object file. Skipping "
                   "symtab population.");

lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.cpp

TypeSP DWARFASTParserClang::ParseTypeFromDWO(const DWARFDIE &die, Log *log) {
   // units as breadcrumbs to find them.
   llvm::SmallVector<CompilerContext, 4> decl_context;
   die.GetDeclContext(decl_context);
   TypeMap dwo_types;
 
   // The type in the Clang module must have the same langage as the current CU.
   LanguageSet languages;
   languages.Insert(die.GetCU()->GetLanguageType());
-  if (!dwo_module_sp->GetSymbolFile()->FindTypes(decl_context, languages,
-                                                 dwo_types)) {
+  dwo_module_sp->GetSymbolFile()->FindTypes(decl_context, languages, dwo_types);
+  if (dwo_types.GetSize()) {
     if (!IsClangModuleFwdDecl(die))
       return TypeSP();
 
     // Since this this type is defined in one of the Clang modules imported by
     // this symbol file, search all of them.
     auto &sym_file = die.GetCU()->GetSymbolFileDWARF();
     for (const auto &name_module : sym_file.getExternalTypeModules()) {
       if (!name_module.second)
         continue;
-      if (name_module.second->GetSymbolFile()->FindTypes(decl_context,
-                                                         languages, dwo_types))
+      name_module.second->GetSymbolFile()->FindTypes(decl_context,
+                                                     languages, dwo_types);
+      if (dwo_types.GetSize());
         break;
     }
   }
 
   if (dwo_types.GetSize() != 1)
     return TypeSP();
 
   // We found a real definition for this type in the Clang module, so lets use

lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.h

public:
   uint32_t FindFunctions(const lldb_private::RegularExpression &regex,
                          bool include_inlines, bool append,
                          lldb_private::SymbolContextList &sc_list) override;
 
   void GetMangledNamesForFunction(
       const std::string &scope_qualified_name,
       std::vector<lldb_private::ConstString> &mangled_names) override;
 
-  uint32_t
+  void
   FindTypes(lldb_private::ConstString name,
             const lldb_private::CompilerDeclContext *parent_decl_ctx,
             uint32_t max_matches,
             llvm::DenseSet<lldb_private::SymbolFile *> &searched_symbol_files,
             lldb_private::TypeMap &types) override;
 
-  size_t FindTypes(llvm::ArrayRef<lldb_private::CompilerContext> pattern,
-                   lldb_private::LanguageSet languages,
-                   lldb_private::TypeMap &types) override;
+  void FindTypes(llvm::ArrayRef<lldb_private::CompilerContext> pattern,
 
-  size_t GetTypes(lldb_private::SymbolContextScope *sc_scope,
-                  lldb::TypeClass type_mask,
-                  lldb_private::TypeList &type_list) override;
+  void GetTypes(lldb_private::SymbolContextScope *sc_scope,
 
   llvm::Expected<lldb_private::TypeSystem &>
   GetTypeSystemForLanguage(lldb::LanguageType language) override;
 
   lldb_private::CompilerDeclContext FindNamespace(
       lldb_private::ConstString name,
       const lldb_private::CompilerDeclContext *parent_decl_ctx) override;
 

lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp

if (die) {
 
     for (DWARFDIE child_die = die.GetFirstChild(); child_die.IsValid();
          child_die = child_die.GetSibling()) {
       GetTypes(child_die, min_die_offset, max_die_offset, type_mask, type_set);
     }
   }
 }
 
-size_t SymbolFileDWARF::GetTypes(SymbolContextScope *sc_scope,
-                                 TypeClass type_mask, TypeList &type_list)
+void SymbolFileDWARF::GetTypes(SymbolContextScope *sc_scope,
 
 {
   std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
   TypeSet type_set;
 
   CompileUnit *comp_unit = nullptr;
   DWARFUnit *dwarf_cu = nullptr;
   if (sc_scope)
     comp_unit = sc_scope->CalculateSymbolContextCompileUnit();
 
   if (comp_unit) {
     dwarf_cu = GetDWARFCompileUnit(comp_unit);
-    if (dwarf_cu == nullptr)
-      return 0;
+    if (!dwarf_cu)
+      return;
     GetTypes(dwarf_cu->DIE(), dwarf_cu->GetOffset(),
              dwarf_cu->GetNextUnitOffset(), type_mask, type_set);
   } else {
     DWARFDebugInfo *info = DebugInfo();
     if (info) {
       const size_t num_cus = info->GetNumUnits();
       for (size_t cu_idx = 0; cu_idx < num_cus; ++cu_idx) {
         dwarf_cu = info->GetUnitAtIndex(cu_idx);
         if (dwarf_cu) {
           GetTypes(dwarf_cu->DIE(), 0, UINT32_MAX, type_mask, type_set);
         }
       }
     }
   }
 
   std::set<CompilerType> compiler_type_set;
-  size_t num_types_added = 0;
   for (Type *type : type_set) {
     CompilerType compiler_type = type->GetForwardCompilerType();
     if (compiler_type_set.find(compiler_type) == compiler_type_set.end()) {
       compiler_type_set.insert(compiler_type);
       type_list.Insert(type->shared_from_this());
-      ++num_types_added;
     }
   }
-  return num_types_added;
 }
 
 // Gets the first parent that is a lexical block, function or inlined
 // subroutine, or compile unit.
 DWARFDIE
 SymbolFileDWARF::GetParentSymbolContextDIE(const DWARFDIE &child_die) {
   DWARFDIE die;
   for (die = child_die.GetParent(); die; die = die.GetParent()) {
void SymbolFileDWARF::GetMangledNamesForFunction(
 
   for (lldb::user_id_t uid :
        m_function_scope_qualified_name_map.lookup(scope_qualified_name)) {
     DWARFDIE die = GetDIE(uid);
     mangled_names.push_back(ConstString(die.GetMangledName()));
   }
 }
 
-uint32_t SymbolFileDWARF::FindTypes(
+void SymbolFileDWARF::FindTypes(
     ConstString name, const CompilerDeclContext *parent_decl_ctx,
     uint32_t max_matches,
     llvm::DenseSet<lldb_private::SymbolFile *> &searched_symbol_files,
     TypeMap &types) {
   std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
   // Make sure we haven't already searched this SymbolFile before...
   if (searched_symbol_files.count(this))
-    return 0;
-  else
-    searched_symbol_files.insert(this);
+    return;
+
 
   DWARFDebugInfo *info = DebugInfo();
-  if (info == nullptr)
-    return 0;
+  if (!info)
+    return;
 
   Log *log(LogChannelDWARF::GetLogIfAll(DWARF_LOG_LOOKUPS));
 
   if (log) {
     if (parent_decl_ctx)
       GetObjectFile()->GetModule()->LogMessage(
           log,
           "SymbolFileDWARF::FindTypes (sc, name=\"%s\", parent_decl_ctx = "
           "%p (\"%s\"), max_matches=%u, type_list)",
           name.GetCString(), static_cast<const void *>(parent_decl_ctx),
           parent_decl_ctx->GetName().AsCString("<NULL>"), max_matches);
     else
       GetObjectFile()->GetModule()->LogMessage(
           log,
           "SymbolFileDWARF::FindTypes (sc, name=\"%s\", parent_decl_ctx = "
           "NULL, max_matches=%u, type_list)",
           name.GetCString(), max_matches);
   }
 
   if (!DeclContextMatchesThisSymbolFile(parent_decl_ctx))
-    return 0;
+    return;
 
   DIEArray die_offsets;
   m_index->GetTypes(name, die_offsets);
   const size_t num_die_matches = die_offsets.size();
-  const uint32_t initial_types_size = types.GetSize();
 
   for (size_t i = 0; i < num_die_matches; ++i) {
     const DIERef &die_ref = die_offsets[i];
     DWARFDIE die = GetDIE(die_ref);
     if (die) {
       if (!DIEInDeclContext(parent_decl_ctx, die))
         continue; // The containing decl contexts don't match
 
if (num_die_matches < max_matches) {
 
     for (const auto &pair : m_external_type_modules)
       if (ModuleSP external_module_sp = pair.second) 
         if (SymbolFile *sym_file = external_module_sp->GetSymbolFile())
           sym_file->FindTypes(name, parent_decl_ctx, max_matches,
                               searched_symbol_files, types);
   }
 
-  uint32_t num_matches = types.GetSize() - initial_types_size;
-  if (log && num_matches) {
+  if (log && types.GetSize()) {
     if (parent_decl_ctx) {
       GetObjectFile()->GetModule()->LogMessage(
           log,
           "SymbolFileDWARF::FindTypes (sc, name=\"%s\", parent_decl_ctx "
           "= %p (\"%s\"), max_matches=%u, type_list) => %u",
           name.GetCString(), static_cast<const void *>(parent_decl_ctx),
           parent_decl_ctx->GetName().AsCString("<NULL>"), max_matches,
-          num_matches);
+          types.GetSize());
     } else {
       GetObjectFile()->GetModule()->LogMessage(
           log,
           "SymbolFileDWARF::FindTypes (sc, name=\"%s\", parent_decl_ctx "
           "= NULL, max_matches=%u, type_list) => %u",
-          name.GetCString(), max_matches, num_matches);
+          name.GetCString(), max_matches, types.GetSize());
     }
   }
-
-  return num_matches;
 }
 
-size_t SymbolFileDWARF::FindTypes(llvm::ArrayRef<CompilerContext> pattern,
+void SymbolFileDWARF::FindTypes(llvm::ArrayRef<CompilerContext> pattern,
                                   LanguageSet languages, TypeMap &types) {
   std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
   if (pattern.empty())
-    return 0;
+    return;
 
   ConstString name = pattern.back().name;
 
   if (!name)
-    return 0;
+    return;
 
   DIEArray die_offsets;
   m_index->GetTypes(name, die_offsets);
   const size_t num_die_matches = die_offsets.size();
 
-  size_t num_matches = 0;
   for (size_t i = 0; i < num_die_matches; ++i) {
     const DIERef &die_ref = die_offsets[i];
     DWARFDIE die = GetDIE(die_ref);
 
-    if (die) {
-      if (!languages[die.GetCU()->GetLanguageType()])
-        continue;
+    if (!die) {
+      m_index->ReportInvalidDIERef(die_ref, name.GetStringRef());
+      continue;
+    }
 
-      llvm::SmallVector<CompilerContext, 4> die_context;
-      die.GetDeclContext(die_context);
-      if (!contextMatches(die_context, pattern))
-        continue;
 
-      Type *matching_type = ResolveType(die, true, true);
-      if (matching_type) {
-        // We found a type pointer, now find the shared pointer form our type
-        // list
-        types.InsertUnique(matching_type->shared_from_this());
-        ++num_matches;
-      }
-    } else {
-      m_index->ReportInvalidDIERef(die_ref, name.GetStringRef());
-    }
-  }
-  return num_matches;
-}
+    if (Type *matching_type = ResolveType(die, true, true))
+      // list.
 
 CompilerDeclContext
 SymbolFileDWARF::FindNamespace(ConstString name,
                                const CompilerDeclContext *parent_decl_ctx) {
   std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
   Log *log(LogChannelDWARF::GetLogIfAll(DWARF_LOG_LOOKUPS));
 
   if (log) {

lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.h

public:
   uint32_t
   FindFunctions(lldb_private::ConstString name,
                 const lldb_private::CompilerDeclContext *parent_decl_ctx,
                 lldb::FunctionNameType name_type_mask, bool include_inlines,
                 bool append, lldb_private::SymbolContextList &sc_list) override;
   uint32_t FindFunctions(const lldb_private::RegularExpression &regex,
                          bool include_inlines, bool append,
                          lldb_private::SymbolContextList &sc_list) override;
-  uint32_t
+  void
   FindTypes(lldb_private::ConstString name,
             const lldb_private::CompilerDeclContext *parent_decl_ctx,
             uint32_t max_matches,
             llvm::DenseSet<lldb_private::SymbolFile *> &searched_symbol_files,
             lldb_private::TypeMap &types) override;
   lldb_private::CompilerDeclContext FindNamespace(
       lldb_private::ConstString name,
       const lldb_private::CompilerDeclContext *parent_decl_ctx) override;
-  size_t GetTypes(lldb_private::SymbolContextScope *sc_scope,
-                  lldb::TypeClass type_mask,
-                  lldb_private::TypeList &type_list) override;
+  void GetTypes(lldb_private::SymbolContextScope *sc_scope,
   std::vector<lldb_private::CallEdge>
   ParseCallEdgesInFunction(lldb_private::UserID func_id) override;
 
   void DumpClangAST(lldb_private::Stream &s) override;
 
   // PluginInterface protocol
   lldb_private::ConstString GetPluginName() override;
 

lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.cpp

if (oso_dwarf->FindFunctions(regex, include_inlines, true, sc_list)) {
                                           sc_idx);
     }
     return false;
   });
 
   return sc_list.GetSize() - initial_size;
 }
 
-size_t SymbolFileDWARFDebugMap::GetTypes(SymbolContextScope *sc_scope,
-                                         lldb::TypeClass type_mask,
-                                         TypeList &type_list) {
+void SymbolFileDWARFDebugMap::GetTypes(SymbolContextScope *sc_scope,
   std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
   static Timer::Category func_cat(LLVM_PRETTY_FUNCTION);
   Timer scoped_timer(func_cat,
                      "SymbolFileDWARFDebugMap::GetTypes (type_mask = 0x%8.8x)",
                      type_mask);
 
-  uint32_t initial_size = type_list.GetSize();
   SymbolFileDWARF *oso_dwarf = nullptr;
   if (sc_scope) {
     SymbolContext sc;
     sc_scope->CalculateSymbolContext(&sc);
 
     CompileUnitInfo *cu_info = GetCompUnitInfo(sc);
     if (cu_info) {
       oso_dwarf = GetSymbolFileByCompUnitInfo(cu_info);
       if (oso_dwarf)
         oso_dwarf->GetTypes(sc_scope, type_mask, type_list);
     }
   } else {
     ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
       oso_dwarf->GetTypes(sc_scope, type_mask, type_list);
       return false;
     });
   }
-  return type_list.GetSize() - initial_size;
 }
 
 std::vector<lldb_private::CallEdge>
 SymbolFileDWARFDebugMap::ParseCallEdgesInFunction(UserID func_id) {
   uint32_t oso_idx = GetOSOIndexFromUserID(func_id.GetID());
   SymbolFileDWARF *oso_dwarf = GetSymbolFileByOSOIndex(oso_idx);
   if (oso_dwarf)
     return oso_dwarf->ParseCallEdgesInFunction(func_id);
ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
       return (bool)type_sp;
     });
 
     return type_sp;
   }
   return TypeSP();
 }
 
-uint32_t SymbolFileDWARFDebugMap::FindTypes(
+void SymbolFileDWARFDebugMap::FindTypes(
     ConstString name, const CompilerDeclContext *parent_decl_ctx,
     uint32_t max_matches,
     llvm::DenseSet<lldb_private::SymbolFile *> &searched_symbol_files,
     TypeMap &types) {
   std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
   const uint32_t initial_types_size = types.GetSize();
 
   ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
     oso_dwarf->FindTypes(name, parent_decl_ctx, max_matches,
                          searched_symbol_files, types);
     return types.GetSize() >= max_matches;
   });
-
-  return types.GetSize() - initial_types_size;
 }
 
 //
 // uint32_t
 // SymbolFileDWARFDebugMap::FindTypes (const SymbolContext& sc, const
 // RegularExpression& regex, bool append, uint32_t max_matches, Type::Encoding
 // encoding, lldb::user_id_t udt_uid, TypeList& types)
 //{

lldb/source/Plugins/SymbolFile/NativePDB/SymbolFileNativePDB.h

public:
   uint32_t ResolveSymbolContext(const Address &so_addr,
                                 lldb::SymbolContextItem resolve_scope,
                                 SymbolContext &sc) override;
   uint32_t ResolveSymbolContext(const FileSpec &file_spec, uint32_t line,
                                 bool check_inlines,
                                 lldb::SymbolContextItem resolve_scope,
                                 SymbolContextList &sc_list) override;
 
-  size_t GetTypes(SymbolContextScope *sc_scope, lldb::TypeClass type_mask,
-                  TypeList &type_list) override;
+  void GetTypes(SymbolContextScope *sc_scope, lldb::TypeClass type_mask,
 
   uint32_t FindFunctions(ConstString name,
                          const CompilerDeclContext *parent_decl_ctx,
                          lldb::FunctionNameType name_type_mask,
                          bool include_inlines, bool append,
                          SymbolContextList &sc_list) override;
 
   uint32_t FindFunctions(const RegularExpression &regex, bool include_inlines,
                          bool append, SymbolContextList &sc_list) override;
 
-  uint32_t FindTypes(ConstString name,
-                     const CompilerDeclContext *parent_decl_ctx,
-                     uint32_t max_matches,
-                     llvm::DenseSet<SymbolFile *> &searched_symbol_files,
-                     TypeMap &types) override;
+  void FindTypes(ConstString name, const CompilerDeclContext *parent_decl_ctx,
 
-  size_t FindTypes(llvm::ArrayRef<CompilerContext> pattern,
-                   LanguageSet languages, TypeMap &types) override;
+  void FindTypes(llvm::ArrayRef<CompilerContext> pattern, LanguageSet languages,
+                 TypeMap &types) override;
 
   llvm::Expected<TypeSystem &>
   GetTypeSystemForLanguage(lldb::LanguageType language) override;
 
   CompilerDeclContext
   FindNamespace(ConstString name,
                 const CompilerDeclContext *parent_decl_ctx) override;
 
   ConstString GetPluginName() override;
 
   uint32_t GetPluginVersion() override;
 
   llvm::pdb::PDBFile &GetPDBFile() { return m_index->pdb(); }
   const llvm::pdb::PDBFile &GetPDBFile() const { return m_index->pdb(); }
 
   void DumpClangAST(Stream &s) override;
 
 private:
   uint32_t CalculateNumCompileUnits() override;
 
   lldb::CompUnitSP ParseCompileUnitAtIndex(uint32_t index) override;
 
-  size_t FindTypesByName(llvm::StringRef name, uint32_t max_matches,
-                         TypeMap &types);
+  void FindTypesByName(llvm::StringRef name, uint32_t max_matches,
 
   lldb::TypeSP CreateModifierType(PdbTypeSymId type_id,
                                   const llvm::codeview::ModifierRecord &mr,
                                   CompilerType ct);
   lldb::TypeSP CreatePointerType(PdbTypeSymId type_id,
                                  const llvm::codeview::PointerRecord &pr,
                                  CompilerType ct);
   lldb::TypeSP CreateSimpleType(llvm::codeview::TypeIndex ti, CompilerType ct);

lldb/source/Plugins/SymbolFile/NativePDB/SymbolFileNativePDB.cpp

 }
 
 uint32_t SymbolFileNativePDB::FindFunctions(const RegularExpression &regex,
                                             bool include_inlines, bool append,
                                             SymbolContextList &sc_list) {
   return 0;
 }
 
-uint32_t SymbolFileNativePDB::FindTypes(
+void SymbolFileNativePDB::FindTypes(
     ConstString name, const CompilerDeclContext *parent_decl_ctx,
-    uint32_t max_matches,
-    llvm::DenseSet<SymbolFile *> &searched_symbol_files, TypeMap &types) {
+    uint32_t max_matches, llvm::DenseSet<SymbolFile *> &searched_symbol_files,
+    TypeMap &types) {
   std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
   if (!name)
-    return 0;
+    return;
 
   searched_symbol_files.clear();
   searched_symbol_files.insert(this);
 
   // There is an assumption 'name' is not a regex
-  size_t match_count = FindTypesByName(name.GetStringRef(), max_matches, types);
-
-  return match_count;
+  FindTypesByName(name.GetStringRef(), max_matches, types);
 }
 
-size_t SymbolFileNativePDB::FindTypes(llvm::ArrayRef<CompilerContext> pattern,
-                                      LanguageSet languages, TypeMap &types) {
-  return 0;
-}
+void SymbolFileNativePDB::FindTypes(llvm::ArrayRef<CompilerContext> pattern,
+                                    LanguageSet languages, TypeMap &types) {}
 
-size_t SymbolFileNativePDB::FindTypesByName(llvm::StringRef name,
-                                            uint32_t max_matches,
-                                            TypeMap &types) {
+void SymbolFileNativePDB::FindTypesByName(llvm::StringRef name,
 
-  size_t match_count = 0;
   std::vector<TypeIndex> matches = m_index->tpi().findRecordsByName(name);
   if (max_matches > 0 && max_matches < matches.size())
     matches.resize(max_matches);
 
   for (TypeIndex ti : matches) {
     TypeSP type = GetOrCreateType(ti);
     if (!type)
       continue;
 
     types.Insert(type);
-    ++match_count;
   }
-  return match_count;
 }
 
 size_t SymbolFileNativePDB::ParseTypes(CompileUnit &comp_unit) {
   std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
   // Only do the full type scan the first time.
   if (m_done_full_type_scan)
     return 0;
 

 
 bool SymbolFileNativePDB::CompleteType(CompilerType &compiler_type) {
   clang::QualType qt =
       clang::QualType::getFromOpaquePtr(compiler_type.GetOpaqueQualType());
 
   return m_ast->CompleteType(qt);
 }
 
-size_t SymbolFileNativePDB::GetTypes(lldb_private::SymbolContextScope *sc_scope,
-                                     TypeClass type_mask,
-                                     lldb_private::TypeList &type_list) {
-  return 0;
-}
+void SymbolFileNativePDB::GetTypes(lldb_private::SymbolContextScope *sc_scope,
+                                   lldb_private::TypeList &type_list) {}
 
 CompilerDeclContext
 SymbolFileNativePDB::FindNamespace(ConstString name,
                                    const CompilerDeclContext *parent_decl_ctx) {
   return {};
 }
 
 llvm::Expected<TypeSystem &>

lldb/source/Plugins/SymbolFile/PDB/SymbolFilePDB.h

uint32_t FindFunctions(const lldb_private::RegularExpression &regex,
                          lldb_private::SymbolContextList &sc_list) override;
 
   void GetMangledNamesForFunction(
       const std::string &scope_qualified_name,
       std::vector<lldb_private::ConstString> &mangled_names) override;
 
   void AddSymbols(lldb_private::Symtab &symtab) override;
 
-  uint32_t
+  void
   FindTypes(lldb_private::ConstString name,
             const lldb_private::CompilerDeclContext *parent_decl_ctx,
             uint32_t max_matches,
             llvm::DenseSet<lldb_private::SymbolFile *> &searched_symbol_files,
             lldb_private::TypeMap &types) override;
 
-  size_t FindTypes(llvm::ArrayRef<lldb_private::CompilerContext> pattern,
-                   lldb_private::LanguageSet languages,
-                   lldb_private::TypeMap &types) override;
+  void FindTypes(llvm::ArrayRef<lldb_private::CompilerContext> pattern,
 
   void FindTypesByRegex(const lldb_private::RegularExpression &regex,
                         uint32_t max_matches, lldb_private::TypeMap &types);
 
-  size_t GetTypes(lldb_private::SymbolContextScope *sc_scope,
-                  lldb::TypeClass type_mask,
-                  lldb_private::TypeList &type_list) override;
+  void GetTypes(lldb_private::SymbolContextScope *sc_scope,
 
   llvm::Expected<lldb_private::TypeSystem &>
   GetTypeSystemForLanguage(lldb::LanguageType language) override;
 
   lldb_private::CompilerDeclContext FindNamespace(
       lldb_private::ConstString name,
       const lldb_private::CompilerDeclContext *parent_decl_ctx) override;
 

lldb/source/Plugins/SymbolFile/PDB/SymbolFilePDB.cpp

symtab.AddSymbol(
                0          // flags
                ));
   }
 
   symtab.CalculateSymbolSizes();
   symtab.Finalize();
 }
 
-uint32_t SymbolFilePDB::FindTypes(
+void SymbolFilePDB::FindTypes(
     lldb_private::ConstString name,
     const lldb_private::CompilerDeclContext *parent_decl_ctx,
     uint32_t max_matches,
     llvm::DenseSet<lldb_private::SymbolFile *> &searched_symbol_files,
     lldb_private::TypeMap &types) {
   std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
   if (!name)
-    return 0;
+    return;
   if (!DeclContextMatchesThisSymbolFile(parent_decl_ctx))
-    return 0;
+    return;
 
   searched_symbol_files.clear();
   searched_symbol_files.insert(this);
 
   // There is an assumption 'name' is not a regex
   FindTypesByName(name.GetStringRef(), parent_decl_ctx, max_matches, types);
-
-  return types.GetSize();
 }
 
 void SymbolFilePDB::DumpClangAST(Stream &s) {
   auto type_system_or_err =
       GetTypeSystemForLanguage(lldb::eLanguageTypeC_plus_plus);
   if (auto err = type_system_or_err.takeError()) {
     LLDB_LOG_ERROR(lldb_private::GetLogIfAnyCategoriesSet(LIBLLDB_LOG_SYMBOLS),
                    std::move(err), "Unable to dump ClangAST");
while (auto result = results->getNext()) {
     auto iter = m_types.find(result->getSymIndexId());
     if (iter == m_types.end())
       continue;
     types.Insert(iter->second);
     ++matches;
   }
 }
 
-size_t SymbolFilePDB::FindTypes(llvm::ArrayRef<CompilerContext> pattern,
-                                LanguageSet languages,
-                                lldb_private::TypeMap &types) {
-  return 0;
-}
+void SymbolFilePDB::FindTypes(llvm::ArrayRef<CompilerContext> pattern,
+                              lldb_private::TypeMap &types) {}
 
 void SymbolFilePDB::GetTypesForPDBSymbol(const llvm::pdb::PDBSymbol &pdb_symbol,
                                          uint32_t type_mask,
                                          TypeCollection &type_collection) {
   bool can_parse = false;
   switch (pdb_symbol.getSymTag()) {
   case PDB_SymType::ArrayType:
     can_parse = ((type_mask & eTypeClassArray) != 0);
if (can_parse) {
     }
   }
 
   auto results_up = pdb_symbol.findAllChildren();
   while (auto symbol_up = results_up->getNext())
     GetTypesForPDBSymbol(*symbol_up, type_mask, type_collection);
 }
 
-size_t SymbolFilePDB::GetTypes(lldb_private::SymbolContextScope *sc_scope,
-                               TypeClass type_mask,
-                               lldb_private::TypeList &type_list) {
+void SymbolFilePDB::GetTypes(lldb_private::SymbolContextScope *sc_scope,
   std::lock_guard<std::recursive_mutex> guard(GetModuleMutex());
   TypeCollection type_collection;
-  uint32_t old_size = type_list.GetSize();
   CompileUnit *cu =
       sc_scope ? sc_scope->CalculateSymbolContextCompileUnit() : nullptr;
   if (cu) {
     auto compiland_up = GetPDBCompilandByUID(cu->GetID());
     if (!compiland_up)
-      return 0;
+      return;
     GetTypesForPDBSymbol(*compiland_up, type_mask, type_collection);
   } else {
     for (uint32_t cu_idx = 0; cu_idx < GetNumCompileUnits(); ++cu_idx) {
       auto cu_sp = ParseCompileUnitAtIndex(cu_idx);
       if (cu_sp) {
         if (auto compiland_up = GetPDBCompilandByUID(cu_sp->GetID()))
           GetTypesForPDBSymbol(*compiland_up, type_mask, type_collection);
       }
     }
   }
 
   for (auto type : type_collection) {
     type->GetForwardCompilerType();
     type_list.Insert(type->shared_from_this());
   }
-  return type_list.GetSize() - old_size;
 }
 
 llvm::Expected<lldb_private::TypeSystem &>
 SymbolFilePDB::GetTypeSystemForLanguage(lldb::LanguageType language) {
   auto type_system_or_err =
       m_objfile_sp->GetModule()->GetTypeSystemForLanguage(language);
   if (type_system_or_err) {
     type_system_or_err->SetSymbolFile(this);

lldb/source/Plugins/SymbolFile/Symtab/SymbolFileSymtab.h

llvm::Optional<ArrayInfo> GetDynamicArrayInfoForUID(
       const lldb_private::ExecutionContext *exe_ctx) override;
 
   bool CompleteType(lldb_private::CompilerType &compiler_type) override;
 
   uint32_t ResolveSymbolContext(const lldb_private::Address &so_addr,
                                 lldb::SymbolContextItem resolve_scope,
                                 lldb_private::SymbolContext &sc) override;
 
-  size_t GetTypes(lldb_private::SymbolContextScope *sc_scope,
-                  lldb::TypeClass type_mask,
-                  lldb_private::TypeList &type_list) override;
+  void GetTypes(lldb_private::SymbolContextScope *sc_scope,
 
   // PluginInterface protocol
   lldb_private::ConstString GetPluginName() override;
 
   uint32_t GetPluginVersion() override;
 
 protected:
   uint32_t CalculateNumCompileUnits() override;

lldb/source/Plugins/SymbolFile/Symtab/SymbolFileSymtab.cpp

 const char *SymbolFileSymtab::GetPluginDescriptionStatic() {
   return "Reads debug symbols from an object file's symbol table.";
 }
 
 SymbolFile *SymbolFileSymtab::CreateInstance(ObjectFileSP objfile_sp) {
   return new SymbolFileSymtab(std::move(objfile_sp));
 }
 
-size_t SymbolFileSymtab::GetTypes(SymbolContextScope *sc_scope,
-                                  TypeClass type_mask,
-                                  lldb_private::TypeList &type_list) {
-  return 0;
-}
+void SymbolFileSymtab::GetTypes(SymbolContextScope *sc_scope,
+                                lldb_private::TypeList &type_list) {}
 
 SymbolFileSymtab::SymbolFileSymtab(ObjectFileSP objfile_sp)
     : SymbolFile(std::move(objfile_sp)), m_source_indexes(), m_func_indexes(),
       m_code_indexes(), m_objc_class_name_to_index() {}
 
 SymbolFileSymtab::~SymbolFileSymtab() {}
 
 uint32_t SymbolFileSymtab::CalculateAbilities() {

lldb/source/Symbol/SymbolFile.cpp

 }
 
 void SymbolFile::GetMangledNamesForFunction(
     const std::string &scope_qualified_name,
     std::vector<ConstString> &mangled_names) {
   return;
 }
 
-uint32_t SymbolFile::FindTypes(
+void SymbolFile::FindTypes(
     ConstString name, const CompilerDeclContext *parent_decl_ctx,
     uint32_t max_matches,
     llvm::DenseSet<lldb_private::SymbolFile *> &searched_symbol_files,
-    TypeMap &types) {
-  return 0;
-}
+    TypeMap &types) {}
 
-size_t SymbolFile::FindTypes(llvm::ArrayRef<CompilerContext> pattern,
-                             LanguageSet languages, TypeMap &types) {
-  return 0;
-}
+void SymbolFile::FindTypes(llvm::ArrayRef<CompilerContext> pattern,
+                           LanguageSet languages, TypeMap &types) {}
 
 void SymbolFile::AssertModuleLock() {
   // The code below is too expensive to leave enabled in release builds. It's
   // enabled in debug builds or when the correct macro is set.
 #if defined(LLDB_CONFIGURATION_DEBUG)
   // We assert that we have to module lock by trying to acquire the lock from a
   // different thread. Note that we must abort if the result is true to
   // guarantee correctness.