Import LLVM 10.0.0 release including clang, lld and lldb.

ok hackroom
tested by plenty

1 files changed, 1132 insertions, 0 deletions

diff --git a/gnu/llvm/lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.cpp b/gnu/llvm/lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.cpp
new file mode 100644
index 00000000000..4385a60f586
--- /dev/null
+++ b/gnu/llvm/lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.cpp
@@ -0,0 +1,1132 @@
+//===-- CPlusPlusLanguage.cpp -----------------------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "CPlusPlusLanguage.h"
+
+#include <cctype>
+#include <cstring>
+
+#include <functional>
+#include <memory>
+#include <mutex>
+#include <set>
+
+#include "llvm/ADT/StringRef.h"
+#include "llvm/Demangle/ItaniumDemangle.h"
+
+#include "lldb/Core/Mangled.h"
+#include "lldb/Core/PluginManager.h"
+#include "lldb/Core/UniqueCStringMap.h"
+#include "lldb/DataFormatters/CXXFunctionPointer.h"
+#include "lldb/DataFormatters/DataVisualization.h"
+#include "lldb/DataFormatters/FormattersHelpers.h"
+#include "lldb/DataFormatters/VectorType.h"
+#include "lldb/Utility/ConstString.h"
+#include "lldb/Utility/Log.h"
+#include "lldb/Utility/RegularExpression.h"
+
+#include "BlockPointer.h"
+#include "CPlusPlusNameParser.h"
+#include "CxxStringTypes.h"
+#include "LibCxx.h"
+#include "LibCxxAtomic.h"
+#include "LibCxxVariant.h"
+#include "LibStdcpp.h"
+#include "MSVCUndecoratedNameParser.h"
+
+using namespace lldb;
+using namespace lldb_private;
+using namespace lldb_private::formatters;
+
+void CPlusPlusLanguage::Initialize() {
+  PluginManager::RegisterPlugin(GetPluginNameStatic(), "C++ Language",
+                                CreateInstance);
+}
+
+void CPlusPlusLanguage::Terminate() {
+  PluginManager::UnregisterPlugin(CreateInstance);
+}
+
+lldb_private::ConstString CPlusPlusLanguage::GetPluginNameStatic() {
+  static ConstString g_name("cplusplus");
+  return g_name;
+}
+
+// PluginInterface protocol
+
+lldb_private::ConstString CPlusPlusLanguage::GetPluginName() {
+  return GetPluginNameStatic();
+}
+
+uint32_t CPlusPlusLanguage::GetPluginVersion() { return 1; }
+
+// Static Functions
+
+Language *CPlusPlusLanguage::CreateInstance(lldb::LanguageType language) {
+  if (Language::LanguageIsCPlusPlus(language))
+    return new CPlusPlusLanguage();
+  return nullptr;
+}
+
+void CPlusPlusLanguage::MethodName::Clear() {
+  m_full.Clear();
+  m_basename = llvm::StringRef();
+  m_context = llvm::StringRef();
+  m_arguments = llvm::StringRef();
+  m_qualifiers = llvm::StringRef();
+  m_parsed = false;
+  m_parse_error = false;
+}
+
+static bool ReverseFindMatchingChars(const llvm::StringRef &s,
+                                     const llvm::StringRef &left_right_chars,
+                                     size_t &left_pos, size_t &right_pos,
+                                     size_t pos = llvm::StringRef::npos) {
+  assert(left_right_chars.size() == 2);
+  left_pos = llvm::StringRef::npos;
+  const char left_char = left_right_chars[0];
+  const char right_char = left_right_chars[1];
+  pos = s.find_last_of(left_right_chars, pos);
+  if (pos == llvm::StringRef::npos || s[pos] == left_char)
+    return false;
+  right_pos = pos;
+  uint32_t depth = 1;
+  while (pos > 0 && depth > 0) {
+    pos = s.find_last_of(left_right_chars, pos);
+    if (pos == llvm::StringRef::npos)
+      return false;
+    if (s[pos] == left_char) {
+      if (--depth == 0) {
+        left_pos = pos;
+        return left_pos < right_pos;
+      }
+    } else if (s[pos] == right_char) {
+      ++depth;
+    }
+  }
+  return false;
+}
+
+static bool IsTrivialBasename(const llvm::StringRef &basename) {
+  // Check that the basename matches with the following regular expression
+  // "^~?([A-Za-z_][A-Za-z_0-9]*)$" We are using a hand written implementation
+  // because it is significantly more efficient then using the general purpose
+  // regular expression library.
+  size_t idx = 0;
+  if (basename.size() > 0 && basename[0] == '~')
+    idx = 1;
+
+  if (basename.size() <= idx)
+    return false; // Empty string or "~"
+
+  if (!std::isalpha(basename[idx]) && basename[idx] != '_')
+    return false; // First charater (after removing the possible '~'') isn't in
+                  // [A-Za-z_]
+
+  // Read all characters matching [A-Za-z_0-9]
+  ++idx;
+  while (idx < basename.size()) {
+    if (!std::isalnum(basename[idx]) && basename[idx] != '_')
+      break;
+    ++idx;
+  }
+
+  // We processed all characters. It is a vaild basename.
+  return idx == basename.size();
+}
+
+bool CPlusPlusLanguage::MethodName::TrySimplifiedParse() {
+  // This method tries to parse simple method definitions which are presumably
+  // most comman in user programs. Definitions that can be parsed by this
+  // function don't have return types and templates in the name.
+  // A::B::C::fun(std::vector<T> &) const
+  size_t arg_start, arg_end;
+  llvm::StringRef full(m_full.GetCString());
+  llvm::StringRef parens("()", 2);
+  if (ReverseFindMatchingChars(full, parens, arg_start, arg_end)) {
+    m_arguments = full.substr(arg_start, arg_end - arg_start + 1);
+    if (arg_end + 1 < full.size())
+      m_qualifiers = full.substr(arg_end + 1).ltrim();
+
+    if (arg_start == 0)
+      return false;
+    size_t basename_end = arg_start;
+    size_t context_start = 0;
+    size_t context_end = full.rfind(':', basename_end);
+    if (context_end == llvm::StringRef::npos)
+      m_basename = full.substr(0, basename_end);
+    else {
+      if (context_start < context_end)
+        m_context = full.substr(context_start, context_end - 1 - context_start);
+      const size_t basename_begin = context_end + 1;
+      m_basename = full.substr(basename_begin, basename_end - basename_begin);
+    }
+
+    if (IsTrivialBasename(m_basename)) {
+      return true;
+    } else {
+      // The C++ basename doesn't match our regular expressions so this can't
+      // be a valid C++ method, clear everything out and indicate an error
+      m_context = llvm::StringRef();
+      m_basename = llvm::StringRef();
+      m_arguments = llvm::StringRef();
+      m_qualifiers = llvm::StringRef();
+      return false;
+    }
+  }
+  return false;
+}
+
+void CPlusPlusLanguage::MethodName::Parse() {
+  if (!m_parsed && m_full) {
+    if (TrySimplifiedParse()) {
+      m_parse_error = false;
+    } else {
+      CPlusPlusNameParser parser(m_full.GetStringRef());
+      if (auto function = parser.ParseAsFunctionDefinition()) {
+        m_basename = function.getValue().name.basename;
+        m_context = function.getValue().name.context;
+        m_arguments = function.getValue().arguments;
+        m_qualifiers = function.getValue().qualifiers;
+        m_parse_error = false;
+      } else {
+        m_parse_error = true;
+      }
+    }
+    m_parsed = true;
+  }
+}
+
+llvm::StringRef CPlusPlusLanguage::MethodName::GetBasename() {
+  if (!m_parsed)
+    Parse();
+  return m_basename;
+}
+
+llvm::StringRef CPlusPlusLanguage::MethodName::GetContext() {
+  if (!m_parsed)
+    Parse();
+  return m_context;
+}
+
+llvm::StringRef CPlusPlusLanguage::MethodName::GetArguments() {
+  if (!m_parsed)
+    Parse();
+  return m_arguments;
+}
+
+llvm::StringRef CPlusPlusLanguage::MethodName::GetQualifiers() {
+  if (!m_parsed)
+    Parse();
+  return m_qualifiers;
+}
+
+std::string CPlusPlusLanguage::MethodName::GetScopeQualifiedName() {
+  if (!m_parsed)
+    Parse();
+  if (m_context.empty())
+    return m_basename;
+
+  std::string res;
+  res += m_context;
+  res += "::";
+  res += m_basename;
+  return res;
+}
+
+bool CPlusPlusLanguage::IsCPPMangledName(llvm::StringRef name) {
+  // FIXME!! we should really run through all the known C++ Language plugins
+  // and ask each one if this is a C++ mangled name
+
+  Mangled::ManglingScheme scheme = Mangled::GetManglingScheme(name);
+
+  if (scheme == Mangled::eManglingSchemeNone)
+    return false;
+
+  return true;
+}
+
+bool CPlusPlusLanguage::ExtractContextAndIdentifier(
+    const char *name, llvm::StringRef &context, llvm::StringRef &identifier) {
+  if (MSVCUndecoratedNameParser::IsMSVCUndecoratedName(name))
+    return MSVCUndecoratedNameParser::ExtractContextAndIdentifier(name, context,
+                                                                  identifier);
+
+  CPlusPlusNameParser parser(name);
+  if (auto full_name = parser.ParseAsFullName()) {
+    identifier = full_name.getValue().basename;
+    context = full_name.getValue().context;
+    return true;
+  }
+  return false;
+}
+
+namespace {
+class NodeAllocator {
+  llvm::BumpPtrAllocator Alloc;
+
+public:
+  void reset() { Alloc.Reset(); }
+
+  template <typename T, typename... Args> T *makeNode(Args &&... args) {
+    return new (Alloc.Allocate(sizeof(T), alignof(T)))
+        T(std::forward<Args>(args)...);
+  }
+
+  void *allocateNodeArray(size_t sz) {
+    return Alloc.Allocate(sizeof(llvm::itanium_demangle::Node *) * sz,
+                          alignof(llvm::itanium_demangle::Node *));
+  }
+};
+
+template <typename Derived>
+class ManglingSubstitutor
+    : public llvm::itanium_demangle::AbstractManglingParser<Derived,
+                                                            NodeAllocator> {
+  using Base =
+      llvm::itanium_demangle::AbstractManglingParser<Derived, NodeAllocator>;
+
+public:
+  ManglingSubstitutor() : Base(nullptr, nullptr) {}
+
+  template<typename... Ts>
+  ConstString substitute(llvm::StringRef Mangled, Ts &&... Vals) {
+    this->getDerived().reset(Mangled, std::forward<Ts>(Vals)...);
+    return substituteImpl(Mangled);
+  }
+
+
+protected:
+  void reset(llvm::StringRef Mangled) {
+    Base::reset(Mangled.begin(), Mangled.end());
+    Written = Mangled.begin();
+    Result.clear();
+    Substituted = false;
+  }
+
+  ConstString substituteImpl(llvm::StringRef Mangled) {
+    Log *log = GetLogIfAllCategoriesSet(LIBLLDB_LOG_LANGUAGE);
+    if (this->parse() == nullptr) {
+      LLDB_LOG(log, "Failed to substitute mangling in {0}", Mangled);
+      return ConstString();
+    }
+    if (!Substituted)
+      return ConstString();
+
+    // Append any trailing unmodified input.
+    appendUnchangedInput();
+    LLDB_LOG(log, "Substituted mangling {0} -> {1}", Mangled, Result);
+    return ConstString(Result);
+  }
+
+  void trySubstitute(llvm::StringRef From, llvm::StringRef To) {
+    if (!llvm::StringRef(currentParserPos(), this->numLeft()).startswith(From))
+      return;
+
+    // We found a match. Append unmodified input up to this point.
+    appendUnchangedInput();
+
+    // And then perform the replacement.
+    Result += To;
+    Written += From.size();
+    Substituted = true;
+  }
+
+private:
+  /// Input character until which we have constructed the respective output
+  /// already.
+  const char *Written;
+
+  llvm::SmallString<128> Result;
+
+  /// Whether we have performed any substitutions.
+  bool Substituted;
+
+  const char *currentParserPos() const { return this->First; }
+
+  void appendUnchangedInput() {
+    Result +=
+        llvm::StringRef(Written, std::distance(Written, currentParserPos()));
+    Written = currentParserPos();
+  }
+
+};
+
+/// Given a mangled function `Mangled`, replace all the primitive function type
+/// arguments of `Search` with type `Replace`.
+class TypeSubstitutor : public ManglingSubstitutor<TypeSubstitutor> {
+  llvm::StringRef Search;
+  llvm::StringRef Replace;
+
+public:
+  void reset(llvm::StringRef Mangled, llvm::StringRef Search,
+             llvm::StringRef Replace) {
+    ManglingSubstitutor::reset(Mangled);
+    this->Search = Search;
+    this->Replace = Replace;
+  }
+
+  llvm::itanium_demangle::Node *parseType() {
+    trySubstitute(Search, Replace);
+    return ManglingSubstitutor::parseType();
+  }
+};
+
+class CtorDtorSubstitutor : public ManglingSubstitutor<CtorDtorSubstitutor> {
+public:
+  llvm::itanium_demangle::Node *
+  parseCtorDtorName(llvm::itanium_demangle::Node *&SoFar, NameState *State) {
+    trySubstitute("C1", "C2");
+    trySubstitute("D1", "D2");
+    return ManglingSubstitutor::parseCtorDtorName(SoFar, State);
+  }
+};
+} // namespace
+
+uint32_t CPlusPlusLanguage::FindAlternateFunctionManglings(
+    const ConstString mangled_name, std::set<ConstString> &alternates) {
+  const auto start_size = alternates.size();
+  /// Get a basic set of alternative manglings for the given symbol `name`, by
+  /// making a few basic possible substitutions on basic types, storage duration
+  /// and `const`ness for the given symbol. The output parameter `alternates`
+  /// is filled with a best-guess, non-exhaustive set of different manglings
+  /// for the given name.
+
+  // Maybe we're looking for a const symbol but the debug info told us it was
+  // non-const...
+  if (!strncmp(mangled_name.GetCString(), "_ZN", 3) &&
+      strncmp(mangled_name.GetCString(), "_ZNK", 4)) {
+    std::string fixed_scratch("_ZNK");
+    fixed_scratch.append(mangled_name.GetCString() + 3);
+    alternates.insert(ConstString(fixed_scratch));
+  }
+
+  // Maybe we're looking for a static symbol but we thought it was global...
+  if (!strncmp(mangled_name.GetCString(), "_Z", 2) &&
+      strncmp(mangled_name.GetCString(), "_ZL", 3)) {
+    std::string fixed_scratch("_ZL");
+    fixed_scratch.append(mangled_name.GetCString() + 2);
+    alternates.insert(ConstString(fixed_scratch));
+  }
+
+  TypeSubstitutor TS;
+  // `char` is implementation defined as either `signed` or `unsigned`.  As a
+  // result a char parameter has 3 possible manglings: 'c'-char, 'a'-signed
+  // char, 'h'-unsigned char.  If we're looking for symbols with a signed char
+  // parameter, try finding matches which have the general case 'c'.
+  if (ConstString char_fixup =
+          TS.substitute(mangled_name.GetStringRef(), "a", "c"))
+    alternates.insert(char_fixup);
+
+  // long long parameter mangling 'x', may actually just be a long 'l' argument
+  if (ConstString long_fixup =
+          TS.substitute(mangled_name.GetStringRef(), "x", "l"))
+    alternates.insert(long_fixup);
+
+  // unsigned long long parameter mangling 'y', may actually just be unsigned
+  // long 'm' argument
+  if (ConstString ulong_fixup =
+          TS.substitute(mangled_name.GetStringRef(), "y", "m"))
+    alternates.insert(ulong_fixup);
+
+  if (ConstString ctor_fixup =
+          CtorDtorSubstitutor().substitute(mangled_name.GetStringRef()))
+    alternates.insert(ctor_fixup);
+
+  return alternates.size() - start_size;
+}
+
+static void LoadLibCxxFormatters(lldb::TypeCategoryImplSP cpp_category_sp) {
+  if (!cpp_category_sp)
+    return;
+
+  TypeSummaryImpl::Flags stl_summary_flags;
+  stl_summary_flags.SetCascades(true)
+      .SetSkipPointers(false)
+      .SetSkipReferences(false)
+      .SetDontShowChildren(true)
+      .SetDontShowValue(true)
+      .SetShowMembersOneLiner(false)
+      .SetHideItemNames(false);
+
+  AddCXXSummary(cpp_category_sp,
+                lldb_private::formatters::LibcxxStringSummaryProviderASCII,
+                "std::string summary provider",
+                ConstString("^std::__[[:alnum:]]+::string$"), stl_summary_flags,
+                true);
+  AddCXXSummary(cpp_category_sp,
+                lldb_private::formatters::LibcxxStringSummaryProviderASCII,
+                "std::string summary provider",
+                ConstString("^std::__[[:alnum:]]+::basic_string<char, "
+                            "std::__[[:alnum:]]+::char_traits<char>, "
+                            "std::__[[:alnum:]]+::allocator<char> >$"),
+                stl_summary_flags, true);
+  AddCXXSummary(cpp_category_sp,
+                lldb_private::formatters::LibcxxStringSummaryProviderASCII,
+                "std::string summary provider",
+                ConstString("^std::__[[:alnum:]]+::basic_string<unsigned char, "
+                            "std::__[[:alnum:]]+::char_traits<unsigned char>, "
+                            "std::__[[:alnum:]]+::allocator<unsigned char> >$"),
+                stl_summary_flags, true);
+
+  AddCXXSummary(cpp_category_sp,
+                lldb_private::formatters::LibcxxStringSummaryProviderUTF16,
+                "std::u16string summary provider",
+                ConstString(
+                    "^std::__[[:alnum:]]+::basic_string<char16_t, "
+                    "std::__[[:alnum:]]+::char_traits<char16_t>, "
+                    "std::__[[:alnum:]]+::allocator<char16_t> >$"),
+                stl_summary_flags, true);
+
+  AddCXXSummary(cpp_category_sp,
+                lldb_private::formatters::LibcxxStringSummaryProviderUTF32,
+                "std::u32string summary provider",
+                ConstString(
+                    "^std::__[[:alnum:]]+::basic_string<char32_t, "
+                    "std::__[[:alnum:]]+::char_traits<char32_t>, "
+                    "std::__[[:alnum:]]+::allocator<char32_t> >$"),
+                stl_summary_flags, true);
+
+  AddCXXSummary(cpp_category_sp,
+                lldb_private::formatters::LibcxxWStringSummaryProvider,
+                "std::wstring summary provider",
+                ConstString("^std::__[[:alnum:]]+::wstring$"),
+                stl_summary_flags, true);
+  AddCXXSummary(cpp_category_sp,
+                lldb_private::formatters::LibcxxWStringSummaryProvider,
+                "std::wstring summary provider",
+                ConstString("^std::__[[:alnum:]]+::basic_string<wchar_t, "
+                            "std::__[[:alnum:]]+::char_traits<wchar_t>, "
+                            "std::__[[:alnum:]]+::allocator<wchar_t> >$"),
+                stl_summary_flags, true);
+
+  SyntheticChildren::Flags stl_synth_flags;
+  stl_synth_flags.SetCascades(true).SetSkipPointers(false).SetSkipReferences(
+      false);
+  SyntheticChildren::Flags stl_deref_flags = stl_synth_flags;
+  stl_deref_flags.SetFrontEndWantsDereference();
+
+  AddCXXSynthetic(
+      cpp_category_sp,
+      lldb_private::formatters::LibcxxBitsetSyntheticFrontEndCreator,
+      "libc++ std::bitset synthetic children",
+      ConstString("^std::__[[:alnum:]]+::bitset<.+>(( )?&)?$"), stl_deref_flags,
+      true);
+  AddCXXSynthetic(
+      cpp_category_sp,
+      lldb_private::formatters::LibcxxStdVectorSyntheticFrontEndCreator,
+      "libc++ std::vector synthetic children",
+      ConstString("^std::__[[:alnum:]]+::vector<.+>(( )?&)?$"), stl_deref_flags,
+      true);
+  AddCXXSynthetic(
+      cpp_category_sp,
+      lldb_private::formatters::LibcxxStdForwardListSyntheticFrontEndCreator,
+      "libc++ std::forward_list synthetic children",
+      ConstString("^std::__[[:alnum:]]+::forward_list<.+>(( )?&)?$"),
+      stl_synth_flags, true);
+  AddCXXSynthetic(
+      cpp_category_sp,
+      lldb_private::formatters::LibcxxStdListSyntheticFrontEndCreator,
+      "libc++ std::list synthetic children",
+      // A POSIX variant of: "^std::__(?!cxx11:)[[:alnum:]]+::list<.+>(( )?&)?$"
+      // so that it does not clash with: "^std::(__cxx11::)?list<.+>(( )?&)?$"
+      ConstString("^std::__([A-Zabd-z0-9]|cx?[A-Za-wyz0-9]|cxx1?[A-Za-z02-9]|"
+                  "cxx11[[:alnum:]])[[:alnum:]]*::list<.+>(( )?&)?$"),
+      stl_deref_flags, true);
+  AddCXXSynthetic(
+      cpp_category_sp,
+      lldb_private::formatters::LibcxxStdMapSyntheticFrontEndCreator,
+      "libc++ std::map synthetic children",
+      ConstString("^std::__[[:alnum:]]+::map<.+> >(( )?&)?$"), stl_synth_flags,
+      true);
+  AddCXXSynthetic(
+      cpp_category_sp,
+      lldb_private::formatters::LibcxxStdMapSyntheticFrontEndCreator,
+      "libc++ std::set synthetic children",
+      ConstString("^std::__[[:alnum:]]+::set<.+> >(( )?&)?$"), stl_deref_flags,
+      true);
+  AddCXXSynthetic(
+      cpp_category_sp,
+      lldb_private::formatters::LibcxxStdMapSyntheticFrontEndCreator,
+      "libc++ std::multiset synthetic children",
+      ConstString("^std::__[[:alnum:]]+::multiset<.+> >(( )?&)?$"),
+      stl_deref_flags, true);
+  AddCXXSynthetic(
+      cpp_category_sp,
+      lldb_private::formatters::LibcxxStdMapSyntheticFrontEndCreator,
+      "libc++ std::multimap synthetic children",
+      ConstString("^std::__[[:alnum:]]+::multimap<.+> >(( )?&)?$"),
+      stl_synth_flags, true);
+  AddCXXSynthetic(
+      cpp_category_sp,
+      lldb_private::formatters::LibcxxStdUnorderedMapSyntheticFrontEndCreator,
+      "libc++ std::unordered containers synthetic children",
+      ConstString("^(std::__[[:alnum:]]+::)unordered_(multi)?(map|set)<.+> >$"),
+      stl_synth_flags, true);
+  AddCXXSynthetic(
+      cpp_category_sp,
+      lldb_private::formatters::LibcxxInitializerListSyntheticFrontEndCreator,
+      "libc++ std::initializer_list synthetic children",
+      ConstString("^std::initializer_list<.+>(( )?&)?$"), stl_synth_flags,
+      true);
+  AddCXXSynthetic(cpp_category_sp, LibcxxQueueFrontEndCreator,
+                  "libc++ std::queue synthetic children",
+                  ConstString("^std::__[[:alnum:]]+::queue<.+>(( )?&)?$"),
+                  stl_synth_flags, true);
+  AddCXXSynthetic(cpp_category_sp, LibcxxTupleFrontEndCreator,
+                  "libc++ std::tuple synthetic children",
+                  ConstString("^std::__[[:alnum:]]+::tuple<.*>(( )?&)?$"),
+                  stl_synth_flags, true);
+  AddCXXSynthetic(cpp_category_sp, LibcxxOptionalFrontEndCreator,
+                  "libc++ std::optional synthetic children",
+                  ConstString("^std::__[[:alnum:]]+::optional<.+>(( )?&)?$"),
+                  stl_synth_flags, true);
+  AddCXXSynthetic(cpp_category_sp, LibcxxVariantFrontEndCreator,
+                  "libc++ std::variant synthetic children",
+                  ConstString("^std::__[[:alnum:]]+::variant<.+>(( )?&)?$"),
+                  stl_synth_flags, true);
+  AddCXXSynthetic(
+      cpp_category_sp,
+      lldb_private::formatters::LibcxxAtomicSyntheticFrontEndCreator,
+      "libc++ std::atomic synthetic children",
+      ConstString("^std::__[[:alnum:]]+::atomic<.+>$"), stl_synth_flags, true);
+
+  cpp_category_sp->GetRegexTypeSyntheticsContainer()->Add(
+      RegularExpression(
+          llvm::StringRef("^(std::__[[:alnum:]]+::)deque<.+>(( )?&)?$")),
+      SyntheticChildrenSP(new ScriptedSyntheticChildren(
+          stl_synth_flags,
+          "lldb.formatters.cpp.libcxx.stddeque_SynthProvider")));
+
+  AddCXXSynthetic(
+      cpp_category_sp,
+      lldb_private::formatters::LibcxxSharedPtrSyntheticFrontEndCreator,
+      "shared_ptr synthetic children",
+      ConstString("^(std::__[[:alnum:]]+::)shared_ptr<.+>(( )?&)?$"),
+      stl_synth_flags, true);
+  AddCXXSynthetic(
+      cpp_category_sp,
+      lldb_private::formatters::LibcxxSharedPtrSyntheticFrontEndCreator,
+      "weak_ptr synthetic children",
+      ConstString("^(std::__[[:alnum:]]+::)weak_ptr<.+>(( )?&)?$"),
+      stl_synth_flags, true);
+  AddCXXSummary(cpp_category_sp,
+                lldb_private::formatters::LibcxxFunctionSummaryProvider,
+                "libc++ std::function summary provider",
+                ConstString("^std::__[[:alnum:]]+::function<.+>$"),
+                stl_summary_flags, true);
+
+  stl_summary_flags.SetDontShowChildren(false);
+  stl_summary_flags.SetSkipPointers(false);
+  AddCXXSummary(cpp_category_sp,
+                lldb_private::formatters::LibcxxContainerSummaryProvider,
+                "libc++ std::bitset summary provider",
+                ConstString("^std::__[[:alnum:]]+::bitset<.+>(( )?&)?$"),
+                stl_summary_flags, true);
+  AddCXXSummary(cpp_category_sp,
+                lldb_private::formatters::LibcxxContainerSummaryProvider,
+                "libc++ std::vector summary provider",
+                ConstString("^std::__[[:alnum:]]+::vector<.+>(( )?&)?$"),
+                stl_summary_flags, true);
+  AddCXXSummary(cpp_category_sp,
+                lldb_private::formatters::LibcxxContainerSummaryProvider,
+                "libc++ std::list summary provider",
+                ConstString("^std::__[[:alnum:]]+::forward_list<.+>(( )?&)?$"),
+                stl_summary_flags, true);
+  AddCXXSummary(
+      cpp_category_sp, lldb_private::formatters::LibcxxContainerSummaryProvider,
+      "libc++ std::list summary provider",
+      // A POSIX variant of: "^std::__(?!cxx11:)[[:alnum:]]+::list<.+>(( )?&)?$"
+      // so that it does not clash with: "^std::(__cxx11::)?list<.+>(( )?&)?$"
+      ConstString("^std::__([A-Zabd-z0-9]|cx?[A-Za-wyz0-9]|cxx1?[A-Za-z02-9]|"
+                  "cxx11[[:alnum:]])[[:alnum:]]*::list<.+>(( )?&)?$"),
+      stl_summary_flags, true);
+  AddCXXSummary(cpp_category_sp,
+                lldb_private::formatters::LibcxxContainerSummaryProvider,
+                "libc++ std::map summary provider",
+                ConstString("^std::__[[:alnum:]]+::map<.+>(( )?&)?$"),
+                stl_summary_flags, true);
+  AddCXXSummary(cpp_category_sp,
+                lldb_private::formatters::LibcxxContainerSummaryProvider,
+                "libc++ std::deque summary provider",
+                ConstString("^std::__[[:alnum:]]+::deque<.+>(( )?&)?$"),
+                stl_summary_flags, true);
+  AddCXXSummary(cpp_category_sp,
+                lldb_private::formatters::LibcxxContainerSummaryProvider,
+                "libc++ std::queue summary provider",
+                ConstString("^std::__[[:alnum:]]+::queue<.+>(( )?&)?$"),
+                stl_summary_flags, true);
+  AddCXXSummary(cpp_category_sp,
+                lldb_private::formatters::LibcxxContainerSummaryProvider,
+                "libc++ std::set summary provider",
+                ConstString("^std::__[[:alnum:]]+::set<.+>(( )?&)?$"),
+                stl_summary_flags, true);
+  AddCXXSummary(cpp_category_sp,
+                lldb_private::formatters::LibcxxContainerSummaryProvider,
+                "libc++ std::multiset summary provider",
+                ConstString("^std::__[[:alnum:]]+::multiset<.+>(( )?&)?$"),
+                stl_summary_flags, true);
+  AddCXXSummary(cpp_category_sp,
+                lldb_private::formatters::LibcxxContainerSummaryProvider,
+                "libc++ std::multimap summary provider",
+                ConstString("^std::__[[:alnum:]]+::multimap<.+>(( )?&)?$"),
+                stl_summary_flags, true);
+  AddCXXSummary(
+      cpp_category_sp, lldb_private::formatters::LibcxxContainerSummaryProvider,
+      "libc++ std::unordered containers summary provider",
+      ConstString("^(std::__[[:alnum:]]+::)unordered_(multi)?(map|set)<.+> >$"),
+      stl_summary_flags, true);
+  AddCXXSummary(cpp_category_sp, LibcxxContainerSummaryProvider,
+                "libc++ std::tuple summary provider",
+                ConstString("^std::__[[:alnum:]]+::tuple<.*>(( )?&)?$"),
+                stl_summary_flags, true);
+  AddCXXSummary(
+      cpp_category_sp, lldb_private::formatters::LibCxxAtomicSummaryProvider,
+      "libc++ std::atomic summary provider",
+      ConstString("^std::__[[:alnum:]]+::atomic<.+>$"), stl_summary_flags,
+      true);
+  AddCXXSummary(cpp_category_sp,
+                lldb_private::formatters::LibcxxOptionalSummaryProvider,
+                "libc++ std::optional summary provider",
+                ConstString("^std::__[[:alnum:]]+::optional<.+>(( )?&)?$"),
+                stl_summary_flags, true);
+  AddCXXSummary(cpp_category_sp,
+                lldb_private::formatters::LibcxxVariantSummaryProvider,
+                "libc++ std::variant summary provider",
+                ConstString("^std::__[[:alnum:]]+::variant<.+>(( )?&)?$"),
+                stl_summary_flags, true);
+
+  stl_summary_flags.SetSkipPointers(true);
+
+  AddCXXSummary(cpp_category_sp,
+                lldb_private::formatters::LibcxxSmartPointerSummaryProvider,
+                "libc++ std::shared_ptr summary provider",
+                ConstString("^std::__[[:alnum:]]+::shared_ptr<.+>(( )?&)?$"),
+                stl_summary_flags, true);
+  AddCXXSummary(cpp_category_sp,
+                lldb_private::formatters::LibcxxSmartPointerSummaryProvider,
+                "libc++ std::weak_ptr summary provider",
+                ConstString("^std::__[[:alnum:]]+::weak_ptr<.+>(( )?&)?$"),
+                stl_summary_flags, true);
+
+  AddCXXSynthetic(
+      cpp_category_sp,
+      lldb_private::formatters::LibCxxVectorIteratorSyntheticFrontEndCreator,
+      "std::vector iterator synthetic children",
+      ConstString("^std::__[[:alnum:]]+::__wrap_iter<.+>$"), stl_synth_flags,
+      true);
+
+  AddCXXSynthetic(
+      cpp_category_sp,
+      lldb_private::formatters::LibCxxMapIteratorSyntheticFrontEndCreator,
+      "std::map iterator synthetic children",
+      ConstString("^std::__[[:alnum:]]+::__map_iterator<.+>$"), stl_synth_flags,
+      true);
+}
+
+static void LoadLibStdcppFormatters(lldb::TypeCategoryImplSP cpp_category_sp) {
+  if (!cpp_category_sp)
+    return;
+
+  TypeSummaryImpl::Flags stl_summary_flags;
+  stl_summary_flags.SetCascades(true)
+      .SetSkipPointers(false)
+      .SetSkipReferences(false)
+      .SetDontShowChildren(true)
+      .SetDontShowValue(true)
+      .SetShowMembersOneLiner(false)
+      .SetHideItemNames(false);
+
+  lldb::TypeSummaryImplSP std_string_summary_sp(
+      new StringSummaryFormat(stl_summary_flags, "${var._M_dataplus._M_p}"));
+
+  lldb::TypeSummaryImplSP cxx11_string_summary_sp(new CXXFunctionSummaryFormat(
+      stl_summary_flags, LibStdcppStringSummaryProvider,
+      "libstdc++ c++11 std::string summary provider"));
+  lldb::TypeSummaryImplSP cxx11_wstring_summary_sp(new CXXFunctionSummaryFormat(
+      stl_summary_flags, LibStdcppWStringSummaryProvider,
+      "libstdc++ c++11 std::wstring summary provider"));
+
+  cpp_category_sp->GetTypeSummariesContainer()->Add(ConstString("std::string"),
+                                                    std_string_summary_sp);
+  cpp_category_sp->GetTypeSummariesContainer()->Add(
+      ConstString("std::basic_string<char>"), std_string_summary_sp);
+  cpp_category_sp->GetTypeSummariesContainer()->Add(
+      ConstString("std::basic_string<char,std::char_traits<char>,std::"
+                  "allocator<char> >"),
+      std_string_summary_sp);
+  cpp_category_sp->GetTypeSummariesContainer()->Add(
+      ConstString("std::basic_string<char, std::char_traits<char>, "
+                  "std::allocator<char> >"),
+      std_string_summary_sp);
+
+  cpp_category_sp->GetTypeSummariesContainer()->Add(
+      ConstString("std::__cxx11::string"), cxx11_string_summary_sp);
+  cpp_category_sp->GetTypeSummariesContainer()->Add(
+      ConstString("std::__cxx11::basic_string<char, std::char_traits<char>, "
+                  "std::allocator<char> >"),
+      cxx11_string_summary_sp);
+  cpp_category_sp->GetTypeSummariesContainer()->Add(
+      ConstString("std::__cxx11::basic_string<unsigned char, std::char_traits<unsigned char>, "
+                  "std::allocator<unsigned char> >"),
+      cxx11_string_summary_sp);
+
+  // making sure we force-pick the summary for printing wstring (_M_p is a
+  // wchar_t*)
+  lldb::TypeSummaryImplSP std_wstring_summary_sp(
+      new StringSummaryFormat(stl_summary_flags, "${var._M_dataplus._M_p%S}"));
+
+  cpp_category_sp->GetTypeSummariesContainer()->Add(ConstString("std::wstring"),
+                                                    std_wstring_summary_sp);
+  cpp_category_sp->GetTypeSummariesContainer()->Add(
+      ConstString("std::basic_string<wchar_t>"), std_wstring_summary_sp);
+  cpp_category_sp->GetTypeSummariesContainer()->Add(
+      ConstString("std::basic_string<wchar_t,std::char_traits<wchar_t>,std::"
+                  "allocator<wchar_t> >"),
+      std_wstring_summary_sp);
+  cpp_category_sp->GetTypeSummariesContainer()->Add(
+      ConstString("std::basic_string<wchar_t, std::char_traits<wchar_t>, "
+                  "std::allocator<wchar_t> >"),
+      std_wstring_summary_sp);
+
+  cpp_category_sp->GetTypeSummariesContainer()->Add(
+      ConstString("std::__cxx11::wstring"), cxx11_wstring_summary_sp);
+  cpp_category_sp->GetTypeSummariesContainer()->Add(
+      ConstString("std::__cxx11::basic_string<wchar_t, "
+                  "std::char_traits<wchar_t>, std::allocator<wchar_t> >"),
+      cxx11_wstring_summary_sp);
+
+  SyntheticChildren::Flags stl_synth_flags;
+  stl_synth_flags.SetCascades(true).SetSkipPointers(false).SetSkipReferences(
+      false);
+
+  cpp_category_sp->GetRegexTypeSyntheticsContainer()->Add(
+      RegularExpression(llvm::StringRef("^std::vector<.+>(( )?&)?$")),
+      SyntheticChildrenSP(new ScriptedSyntheticChildren(
+          stl_synth_flags,
+          "lldb.formatters.cpp.gnu_libstdcpp.StdVectorSynthProvider")));
+  cpp_category_sp->GetRegexTypeSyntheticsContainer()->Add(
+      RegularExpression(llvm::StringRef("^std::map<.+> >(( )?&)?$")),
+      SyntheticChildrenSP(new ScriptedSyntheticChildren(
+          stl_synth_flags,
+          "lldb.formatters.cpp.gnu_libstdcpp.StdMapSynthProvider")));
+  cpp_category_sp->GetRegexTypeSyntheticsContainer()->Add(
+      RegularExpression(llvm::StringRef("^std::(__cxx11::)?list<.+>(( )?&)?$")),
+      SyntheticChildrenSP(new ScriptedSyntheticChildren(
+          stl_synth_flags,
+          "lldb.formatters.cpp.gnu_libstdcpp.StdListSynthProvider")));
+  stl_summary_flags.SetDontShowChildren(false);
+  stl_summary_flags.SetSkipPointers(true);
+  cpp_category_sp->GetRegexTypeSummariesContainer()->Add(
+      RegularExpression(llvm::StringRef("^std::vector<.+>(( )?&)?$")),
+      TypeSummaryImplSP(
+          new StringSummaryFormat(stl_summary_flags, "size=${svar%#}")));
+  cpp_category_sp->GetRegexTypeSummariesContainer()->Add(
+      RegularExpression(llvm::StringRef("^std::map<.+> >(( )?&)?$")),
+      TypeSummaryImplSP(
+          new StringSummaryFormat(stl_summary_flags, "size=${svar%#}")));
+  cpp_category_sp->GetRegexTypeSummariesContainer()->Add(
+      RegularExpression(llvm::StringRef("^std::(__cxx11::)?list<.+>(( )?&)?$")),
+      TypeSummaryImplSP(
+          new StringSummaryFormat(stl_summary_flags, "size=${svar%#}")));
+
+  AddCXXSynthetic(
+      cpp_category_sp,
+      lldb_private::formatters::LibStdcppVectorIteratorSyntheticFrontEndCreator,
+      "std::vector iterator synthetic children",
+      ConstString("^__gnu_cxx::__normal_iterator<.+>$"), stl_synth_flags, true);
+
+  AddCXXSynthetic(
+      cpp_category_sp,
+      lldb_private::formatters::LibstdcppMapIteratorSyntheticFrontEndCreator,
+      "std::map iterator synthetic children",
+      ConstString("^std::_Rb_tree_iterator<.+>$"), stl_synth_flags, true);
+
+  AddCXXSynthetic(
+      cpp_category_sp,
+      lldb_private::formatters::LibStdcppUniquePtrSyntheticFrontEndCreator,
+      "std::unique_ptr synthetic children",
+      ConstString("^std::unique_ptr<.+>(( )?&)?$"), stl_synth_flags, true);
+  AddCXXSynthetic(
+      cpp_category_sp,
+      lldb_private::formatters::LibStdcppSharedPtrSyntheticFrontEndCreator,
+      "std::shared_ptr synthetic children",
+      ConstString("^std::shared_ptr<.+>(( )?&)?$"), stl_synth_flags, true);
+  AddCXXSynthetic(
+      cpp_category_sp,
+      lldb_private::formatters::LibStdcppSharedPtrSyntheticFrontEndCreator,
+      "std::weak_ptr synthetic children",
+      ConstString("^std::weak_ptr<.+>(( )?&)?$"), stl_synth_flags, true);
+  AddCXXSynthetic(
+      cpp_category_sp,
+      lldb_private::formatters::LibStdcppTupleSyntheticFrontEndCreator,
+      "std::tuple synthetic children", ConstString("^std::tuple<.+>(( )?&)?$"),
+      stl_synth_flags, true);
+
+  AddCXXSummary(cpp_category_sp,
+                lldb_private::formatters::LibStdcppUniquePointerSummaryProvider,
+                "libstdc++ std::unique_ptr summary provider",
+                ConstString("^std::unique_ptr<.+>(( )?&)?$"), stl_summary_flags,
+                true);
+  AddCXXSummary(cpp_category_sp,
+                lldb_private::formatters::LibStdcppSmartPointerSummaryProvider,
+                "libstdc++ std::shared_ptr summary provider",
+                ConstString("^std::shared_ptr<.+>(( )?&)?$"), stl_summary_flags,
+                true);
+  AddCXXSummary(cpp_category_sp,
+                lldb_private::formatters::LibStdcppSmartPointerSummaryProvider,
+                "libstdc++ std::weak_ptr summary provider",
+                ConstString("^std::weak_ptr<.+>(( )?&)?$"), stl_summary_flags,
+                true);
+}
+
+static void LoadSystemFormatters(lldb::TypeCategoryImplSP cpp_category_sp) {
+  if (!cpp_category_sp)
+    return;
+
+  TypeSummaryImpl::Flags string_flags;
+  string_flags.SetCascades(true)
+      .SetSkipPointers(true)
+      .SetSkipReferences(false)
+      .SetDontShowChildren(true)
+      .SetDontShowValue(false)
+      .SetShowMembersOneLiner(false)
+      .SetHideItemNames(false);
+
+  TypeSummaryImpl::Flags string_array_flags;
+  string_array_flags.SetCascades(true)
+      .SetSkipPointers(true)
+      .SetSkipReferences(false)
+      .SetDontShowChildren(true)
+      .SetDontShowValue(true)
+      .SetShowMembersOneLiner(false)
+      .SetHideItemNames(false);
+
+  // FIXME because of a bug in the FormattersContainer we need to add a summary
+  // for both X* and const X* (<rdar://problem/12717717>)
+  AddCXXSummary(
+      cpp_category_sp, lldb_private::formatters::Char8StringSummaryProvider,
+      "char8_t * summary provider", ConstString("char8_t *"), string_flags);
+  AddCXXSummary(cpp_category_sp,
+                lldb_private::formatters::Char8StringSummaryProvider,
+                "char8_t [] summary provider",
+                ConstString("char8_t \\[[0-9]+\\]"), string_array_flags, true);
+
+  AddCXXSummary(
+      cpp_category_sp, lldb_private::formatters::Char16StringSummaryProvider,
+      "char16_t * summary provider", ConstString("char16_t *"), string_flags);
+  AddCXXSummary(cpp_category_sp,
+                lldb_private::formatters::Char16StringSummaryProvider,
+                "char16_t [] summary provider",
+                ConstString("char16_t \\[[0-9]+\\]"), string_array_flags, true);
+
+  AddCXXSummary(
+      cpp_category_sp, lldb_private::formatters::Char32StringSummaryProvider,
+      "char32_t * summary provider", ConstString("char32_t *"), string_flags);
+  AddCXXSummary(cpp_category_sp,
+                lldb_private::formatters::Char32StringSummaryProvider,
+                "char32_t [] summary provider",
+                ConstString("char32_t \\[[0-9]+\\]"), string_array_flags, true);
+
+  AddCXXSummary(
+      cpp_category_sp, lldb_private::formatters::WCharStringSummaryProvider,
+      "wchar_t * summary provider", ConstString("wchar_t *"), string_flags);
+  AddCXXSummary(cpp_category_sp,
+                lldb_private::formatters::WCharStringSummaryProvider,
+                "wchar_t * summary provider",
+                ConstString("wchar_t \\[[0-9]+\\]"), string_array_flags, true);
+
+  AddCXXSummary(
+      cpp_category_sp, lldb_private::formatters::Char16StringSummaryProvider,
+      "unichar * summary provider", ConstString("unichar *"), string_flags);
+
+  TypeSummaryImpl::Flags widechar_flags;
+  widechar_flags.SetDontShowValue(true)
+      .SetSkipPointers(true)
+      .SetSkipReferences(false)
+      .SetCascades(true)
+      .SetDontShowChildren(true)
+      .SetHideItemNames(true)
+      .SetShowMembersOneLiner(false);
+
+  AddCXXSummary(cpp_category_sp, lldb_private::formatters::Char8SummaryProvider,
+                "char8_t summary provider", ConstString("char8_t"),
+                widechar_flags);
+  AddCXXSummary(
+      cpp_category_sp, lldb_private::formatters::Char16SummaryProvider,
+      "char16_t summary provider", ConstString("char16_t"), widechar_flags);
+  AddCXXSummary(
+      cpp_category_sp, lldb_private::formatters::Char32SummaryProvider,
+      "char32_t summary provider", ConstString("char32_t"), widechar_flags);
+  AddCXXSummary(cpp_category_sp, lldb_private::formatters::WCharSummaryProvider,
+                "wchar_t summary provider", ConstString("wchar_t"),
+                widechar_flags);
+
+  AddCXXSummary(
+      cpp_category_sp, lldb_private::formatters::Char16SummaryProvider,
+      "unichar summary provider", ConstString("unichar"), widechar_flags);
+}
+
+std::unique_ptr<Language::TypeScavenger> CPlusPlusLanguage::GetTypeScavenger() {
+  class CPlusPlusTypeScavenger : public Language::ImageListTypeScavenger {
+  public:
+    CompilerType AdjustForInclusion(CompilerType &candidate) override {
+      LanguageType lang_type(candidate.GetMinimumLanguage());
+      if (!Language::LanguageIsC(lang_type) &&
+          !Language::LanguageIsCPlusPlus(lang_type))
+        return CompilerType();
+      if (candidate.IsTypedefType())
+        return candidate.GetTypedefedType();
+      return candidate;
+    }
+  };
+
+  return std::unique_ptr<TypeScavenger>(new CPlusPlusTypeScavenger());
+}
+
+lldb::TypeCategoryImplSP CPlusPlusLanguage::GetFormatters() {
+  static llvm::once_flag g_initialize;
+  static TypeCategoryImplSP g_category;
+
+  llvm::call_once(g_initialize, [this]() -> void {
+    DataVisualization::Categories::GetCategory(GetPluginName(), g_category);
+    if (g_category) {
+      LoadLibStdcppFormatters(g_category);
+      LoadLibCxxFormatters(g_category);
+      LoadSystemFormatters(g_category);
+    }
+  });
+  return g_category;
+}
+
+HardcodedFormatters::HardcodedSummaryFinder
+CPlusPlusLanguage::GetHardcodedSummaries() {
+  static llvm::once_flag g_initialize;
+  static ConstString g_vectortypes("VectorTypes");
+  static HardcodedFormatters::HardcodedSummaryFinder g_formatters;
+
+  llvm::call_once(g_initialize, []() -> void {
+    g_formatters.push_back(
+        [](lldb_private::ValueObject &valobj, lldb::DynamicValueType,
+           FormatManager &) -> TypeSummaryImpl::SharedPointer {
+          static CXXFunctionSummaryFormat::SharedPointer formatter_sp(
+              new CXXFunctionSummaryFormat(
+                  TypeSummaryImpl::Flags(),
+                  lldb_private::formatters::CXXFunctionPointerSummaryProvider,
+                  "Function pointer summary provider"));
+          if (valobj.GetCompilerType().IsFunctionPointerType()) {
+            return formatter_sp;
+          }
+          return nullptr;
+        });
+    g_formatters.push_back(
+        [](lldb_private::ValueObject &valobj, lldb::DynamicValueType,
+           FormatManager &fmt_mgr) -> TypeSummaryImpl::SharedPointer {
+          static CXXFunctionSummaryFormat::SharedPointer formatter_sp(
+              new CXXFunctionSummaryFormat(
+                  TypeSummaryImpl::Flags()
+                      .SetCascades(true)
+                      .SetDontShowChildren(true)
+                      .SetHideItemNames(true)
+                      .SetShowMembersOneLiner(true)
+                      .SetSkipPointers(true)
+                      .SetSkipReferences(false),
+                  lldb_private::formatters::VectorTypeSummaryProvider,
+                  "vector_type pointer summary provider"));
+          if (valobj.GetCompilerType().IsVectorType(nullptr, nullptr)) {
+            if (fmt_mgr.GetCategory(g_vectortypes)->IsEnabled())
+              return formatter_sp;
+          }
+          return nullptr;
+        });
+    g_formatters.push_back(
+        [](lldb_private::ValueObject &valobj, lldb::DynamicValueType,
+           FormatManager &fmt_mgr) -> TypeSummaryImpl::SharedPointer {
+          static CXXFunctionSummaryFormat::SharedPointer formatter_sp(
+              new CXXFunctionSummaryFormat(
+                  TypeSummaryImpl::Flags()
+                      .SetCascades(true)
+                      .SetDontShowChildren(true)
+                      .SetHideItemNames(true)
+                      .SetShowMembersOneLiner(true)
+                      .SetSkipPointers(true)
+                      .SetSkipReferences(false),
+                  lldb_private::formatters::BlockPointerSummaryProvider,
+                  "block pointer summary provider"));
+          if (valobj.GetCompilerType().IsBlockPointerType(nullptr)) {
+            return formatter_sp;
+          }
+          return nullptr;
+        });
+  });
+
+  return g_formatters;
+}
+
+HardcodedFormatters::HardcodedSyntheticFinder
+CPlusPlusLanguage::GetHardcodedSynthetics() {
+  static llvm::once_flag g_initialize;
+  static ConstString g_vectortypes("VectorTypes");
+  static HardcodedFormatters::HardcodedSyntheticFinder g_formatters;
+
+  llvm::call_once(g_initialize, []() -> void {
+    g_formatters.push_back([](lldb_private::ValueObject &valobj,
+                              lldb::DynamicValueType,
+                              FormatManager &
+                                  fmt_mgr) -> SyntheticChildren::SharedPointer {
+      static CXXSyntheticChildren::SharedPointer formatter_sp(
+          new CXXSyntheticChildren(
+              SyntheticChildren::Flags()
+                  .SetCascades(true)
+                  .SetSkipPointers(true)
+                  .SetSkipReferences(true)
+                  .SetNonCacheable(true),
+              "vector_type synthetic children",
+              lldb_private::formatters::VectorTypeSyntheticFrontEndCreator));
+      if (valobj.GetCompilerType().IsVectorType(nullptr, nullptr)) {
+        if (fmt_mgr.GetCategory(g_vectortypes)->IsEnabled())
+          return formatter_sp;
+      }
+      return nullptr;
+    });
+    g_formatters.push_back([](lldb_private::ValueObject &valobj,
+                              lldb::DynamicValueType,
+                              FormatManager &
+                                  fmt_mgr) -> SyntheticChildren::SharedPointer {
+      static CXXSyntheticChildren::SharedPointer formatter_sp(
+          new CXXSyntheticChildren(
+              SyntheticChildren::Flags()
+                  .SetCascades(true)
+                  .SetSkipPointers(true)
+                  .SetSkipReferences(true)
+                  .SetNonCacheable(true),
+              "block pointer synthetic children",
+              lldb_private::formatters::BlockPointerSyntheticFrontEndCreator));
+      if (valobj.GetCompilerType().IsBlockPointerType(nullptr)) {
+        return formatter_sp;
+      }
+      return nullptr;
+    });
+
+  });
+
+  return g_formatters;
+}
+
+bool CPlusPlusLanguage::IsSourceFile(llvm::StringRef file_path) const {
+  const auto suffixes = {".cpp", ".cxx", ".c++", ".cc",  ".c",
+                         ".h",   ".hh",  ".hpp", ".hxx", ".h++"};
+  for (auto suffix : suffixes) {
+    if (file_path.endswith_lower(suffix))
+      return true;
+  }
+
+  // Check if we're in a STL path (where the files usually have no extension
+  // that we could check for.
+  return file_path.contains("/usr/include/c++/");
+}