Heavy cleanup of the external pointer API.

Added highly efficient Object::SetAlignedPointerInInternalField and
Object::GetAlignedPointerFromInternalField functions for 2-byte-aligned
pointers. Their non-aligned counterparts Object::GetPointerFromInternalField and
Object::SetPointerInInternalField are now deprecated utility functions.

External is now a true Value again, with New/Value/Cast using a JSObject with an
internal field containing a Foreign. External::Wrap, and External::Unwrap are now
deprecated utility functions.

Added Context::GetEmbedderData and Context::SetEmbedderData. Deprecated
Context::GetData and Context::SetData, these are now only wrappers to access
internal field 0.

Added highly efficient Context::SetAlignedPointerInEmbedderData and
Context::GetAlignedPointerFromEmbedderData functions for 2-byte-aligned
pointers.

Review URL: https://codereview.chromium.org/11190050

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12849 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/api.h

@@ -201,8 +201,6 @@ class Utils {
       v8::internal::Handle<v8::internal::JSObject> obj);
   static inline Local<Array> ToLocal(
       v8::internal::Handle<v8::internal::JSArray> obj);
-  static inline Local<External> ToLocal(
-      v8::internal::Handle<v8::internal::Foreign> obj);
   static inline Local<Message> MessageToLocal(
       v8::internal::Handle<v8::internal::Object> obj);
   static inline Local<StackTrace> StackTraceToLocal(
@@ -225,6 +223,8 @@ class Utils {
       v8::internal::Handle<v8::internal::FunctionTemplateInfo> obj);
   static inline Local<TypeSwitch> ToLocal(
       v8::internal::Handle<v8::internal::TypeSwitchInfo> obj);
+  static inline Local<External> ExternalToLocal(
+      v8::internal::Handle<v8::internal::JSObject> obj);
 
 #define DECLARE_OPEN_HANDLE(From, To) \
   static inline v8::internal::Handle<v8::internal::To> \
@@ -268,7 +268,6 @@ MAKE_TO_LOCAL(ToLocal, String, String)
 MAKE_TO_LOCAL(ToLocal, JSRegExp, RegExp)
 MAKE_TO_LOCAL(ToLocal, JSObject, Object)
 MAKE_TO_LOCAL(ToLocal, JSArray, Array)
-MAKE_TO_LOCAL(ToLocal, Foreign, External)
 MAKE_TO_LOCAL(ToLocal, FunctionTemplateInfo, FunctionTemplate)
 MAKE_TO_LOCAL(ToLocal, ObjectTemplateInfo, ObjectTemplate)
 MAKE_TO_LOCAL(ToLocal, SignatureInfo, Signature)
@@ -280,6 +279,7 @@ MAKE_TO_LOCAL(StackFrameToLocal, JSObject, StackFrame)
 MAKE_TO_LOCAL(NumberToLocal, Object, Number)
 MAKE_TO_LOCAL(IntegerToLocal, Object, Integer)
 MAKE_TO_LOCAL(Uint32ToLocal, Object, Uint32)
+MAKE_TO_LOCAL(ExternalToLocal, JSObject, External)
 
 #undef MAKE_TO_LOCAL
 

src/bootstrapper.cc

@@ -1240,8 +1240,9 @@ bool Genesis::InitializeGlobal(Handle<GlobalObject> inner_global,
   // Initialize the out of memory slot.
   native_context()->set_out_of_memory(heap->false_value());
 
-  // Initialize the data slot.
-  native_context()->set_data(heap->undefined_value());
+  // Initialize the embedder data slot.
+  Handle<FixedArray> embedder_data = factory->NewFixedArray(2);
+  native_context()->set_embedder_data(*embedder_data);
 
   {
     // Initialize the random seed slot.

src/compiler.cc

@@ -432,7 +432,9 @@ static Handle<SharedFunctionInfo> MakeFunctionInfo(CompilationInfo* info) {
 
   ASSERT(!isolate->native_context().is_null());
   Handle<Script> script = info->script();
-  script->set_context_data((*isolate->native_context())->data());
+  // TODO(svenpanne) Obscure place for this, perhaps move to OnBeforeCompile?
+  FixedArray* array = isolate->native_context()->embedder_data();
+  script->set_context_data(array->get(0));
 
 #ifdef ENABLE_DEBUGGER_SUPPORT
   if (info->is_eval()) {

src/contexts.h

@@ -152,7 +152,7 @@ enum BindingFlags {
   V(CONTEXT_EXTENSION_FUNCTION_INDEX, JSFunction, context_extension_function) \
   V(OUT_OF_MEMORY_INDEX, Object, out_of_memory) \
   V(MAP_CACHE_INDEX, Object, map_cache) \
-  V(CONTEXT_DATA_INDEX, Object, data) \
+  V(EMBEDDER_DATA_INDEX, FixedArray, embedder_data) \
   V(ALLOW_CODE_GEN_FROM_STRINGS_INDEX, Object, allow_code_gen_from_strings) \
   V(ERROR_MESSAGE_FOR_CODE_GEN_FROM_STRINGS_INDEX, Object, \
     error_message_for_code_gen_from_strings) \
@@ -281,7 +281,7 @@ class Context: public FixedArray {
     OPAQUE_REFERENCE_FUNCTION_INDEX,
     CONTEXT_EXTENSION_FUNCTION_INDEX,
     OUT_OF_MEMORY_INDEX,
-    CONTEXT_DATA_INDEX,
+    EMBEDDER_DATA_INDEX,
     ALLOW_CODE_GEN_FROM_STRINGS_INDEX,
     ERROR_MESSAGE_FOR_CODE_GEN_FROM_STRINGS_INDEX,
     TO_COMPLETE_PROPERTY_DESCRIPTOR_INDEX,
@@ -446,6 +446,9 @@ class Context: public FixedArray {
   static bool IsBootstrappingOrValidParentContext(Object* object, Context* kid);
   static bool IsBootstrappingOrGlobalObject(Object* object);
 #endif
+
+  STATIC_CHECK(kHeaderSize == Internals::kContextHeaderSize);
+  STATIC_CHECK(EMBEDDER_DATA_INDEX == Internals::kContextEmbedderDataIndex);
 };
 
 } }  // namespace v8::internal

src/factory.cc

@@ -525,6 +525,12 @@ Handle<FixedArray> Factory::CopyFixedArray(Handle<FixedArray> array) {
 }
 
 
+Handle<FixedArray> Factory::CopySizeFixedArray(Handle<FixedArray> array,
+                                               int new_length) {
+  CALL_HEAP_FUNCTION(isolate(), array->CopySize(new_length), FixedArray);
+}
+
+
 Handle<FixedDoubleArray> Factory::CopyFixedDoubleArray(
     Handle<FixedDoubleArray> array) {
   CALL_HEAP_FUNCTION(isolate(), array->Copy(), FixedDoubleArray);
@@ -870,6 +876,13 @@ Handle<ScopeInfo> Factory::NewScopeInfo(int length) {
 }
 
 
+Handle<JSObject> Factory::NewExternal(void* value) {
+  CALL_HEAP_FUNCTION(isolate(),
+                     isolate()->heap()->AllocateExternal(value),
+                     JSObject);
+}
+
+
 Handle<Code> Factory::NewCode(const CodeDesc& desc,
                               Code::Flags flags,
                               Handle<Object> self_ref,

src/factory.h

@@ -239,6 +239,9 @@ class Factory {
 
   Handle<FixedArray> CopyFixedArray(Handle<FixedArray> array);
 
+  Handle<FixedArray> CopySizeFixedArray(Handle<FixedArray> array,
+                                        int new_length);
+
   Handle<FixedDoubleArray> CopyFixedDoubleArray(
       Handle<FixedDoubleArray> array);
 
@@ -325,6 +328,8 @@ class Factory {
 
   Handle<ScopeInfo> NewScopeInfo(int length);
 
+  Handle<JSObject> NewExternal(void* value);
+
   Handle<Code> NewCode(const CodeDesc& desc,
                        Code::Flags flags,
                        Handle<Object> self_reference,

src/heap.cc

@@ -2531,6 +2531,14 @@ bool Heap::CreateInitialMaps() {
   }
   set_message_object_map(Map::cast(obj));
 
+  Map* external_map;
+  { MaybeObject* maybe_obj =
+        AllocateMap(JS_OBJECT_TYPE, JSObject::kHeaderSize + kPointerSize);
+    if (!maybe_obj->To(&external_map)) return false;
+  }
+  external_map->set_is_extensible(false);
+  set_external_map(external_map);
+
   ASSERT(!InNewSpace(empty_fixed_array()));
   return true;
 }
@@ -5133,6 +5141,20 @@ MaybeObject* Heap::AllocateScopeInfo(int length) {
 }
 
 
+MaybeObject* Heap::AllocateExternal(void* value) {
+  Foreign* foreign;
+  { MaybeObject* maybe_result = AllocateForeign(static_cast<Address>(value));
+    if (!maybe_result->To(&foreign)) return maybe_result;
+  }
+  JSObject* external;
+  { MaybeObject* maybe_result = AllocateJSObjectFromMap(external_map());
+    if (!maybe_result->To(&external)) return maybe_result;
+  }
+  external->SetInternalField(0, foreign);
+  return external;
+}
+
+
 MaybeObject* Heap::AllocateStruct(InstanceType type) {
   Map* map;
   switch (type) {

src/heap.h

@@ -154,7 +154,8 @@ namespace internal {
   V(Smi, arguments_adaptor_deopt_pc_offset, ArgumentsAdaptorDeoptPCOffset)     \
   V(Smi, construct_stub_deopt_pc_offset, ConstructStubDeoptPCOffset)           \
   V(Smi, getter_stub_deopt_pc_offset, GetterStubDeoptPCOffset)                 \
-  V(Smi, setter_stub_deopt_pc_offset, SetterStubDeoptPCOffset)
+  V(Smi, setter_stub_deopt_pc_offset, SetterStubDeoptPCOffset)                 \
+  V(Map, external_map, ExternalMap)
 
 #define ROOT_LIST(V)                                  \
   STRONG_ROOT_LIST(V)                                 \
@@ -664,6 +665,9 @@ class Heap {
   // Allocates a serialized scope info.
   MUST_USE_RESULT MaybeObject* AllocateScopeInfo(int length);
 
+  // Allocates an External object for v8's external API.
+  MUST_USE_RESULT MaybeObject* AllocateExternal(void* value);
+
   // Allocates an empty PolymorphicCodeCache.
   MUST_USE_RESULT MaybeObject* AllocatePolymorphicCodeCache();
 

src/objects-inl.h

@@ -134,6 +134,14 @@ bool Object::IsFixedArrayBase() {
 }
 
 
+// External objects are not extensible, so the map check is enough.
+bool Object::IsExternal() {
+  return Object::IsHeapObject() &&
+      HeapObject::cast(this)->map() ==
+      HeapObject::cast(this)->GetHeap()->external_map();
+}
+
+
 bool Object::IsInstanceOf(FunctionTemplateInfo* expected) {
   // There is a constraint on the object; check.
   if (!this->IsJSObject()) return false;

src/objects.h

@@ -887,6 +887,7 @@ class Object : public MaybeObject {
 #undef IS_TYPE_FUNCTION_DECL
 
   inline bool IsFixedArrayBase();
+  inline bool IsExternal();
 
   // Returns true if this object is an instance of the specified
   // function template.
@@ -2410,6 +2411,8 @@ class FixedArray: public FixedArrayBase {
                                                   Object* value);
 
  private:
+  STATIC_CHECK(kHeaderSize == Internals::kFixedArrayHeaderSize);
+
   DISALLOW_IMPLICIT_CONSTRUCTORS(FixedArray);
 };
 

src/profile-generator.cc

@@ -1988,7 +1988,7 @@ void V8HeapExplorer::ExtractContextReferences(int entry, Context* context) {
               "(context func. result caches)");
     TagObject(context->normalized_map_cache(), "(context norm. map cache)");
     TagObject(context->runtime_context(), "(runtime context)");
-    TagObject(context->data(), "(context data)");
+    TagObject(context->embedder_data(), "(context data)");
     NATIVE_CONTEXT_FIELDS(EXTRACT_CONTEXT_FIELD);
 #undef EXTRACT_CONTEXT_FIELD
     for (int i = Context::FIRST_WEAK_SLOT;

test/cctest/test-api.cc

@@ -25,6 +25,9 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+// We want to test our deprecated API entries, too.
+#define V8_DISABLE_DEPRECATIONS 1
+
 #include <limits.h>
 
 #ifndef WIN32
@@ -2056,6 +2059,99 @@ THREADED_TEST(InternalFieldsNativePointersAndExternal) {
 }
 
 
+static void CheckAlignedPointerInInternalField(Handle<v8::Object> obj,
+                                               void* value) {
+  CHECK_EQ(0, static_cast<int>(reinterpret_cast<uintptr_t>(value) & 0x1));
+  obj->SetPointerInInternalField(0, value);
+  HEAP->CollectAllGarbage(i::Heap::kNoGCFlags);
+  CHECK_EQ(value, obj->GetPointerFromInternalField(0));
+}
+
+
+THREADED_TEST(InternalFieldsAlignedPointers) {
+  v8::HandleScope scope;
+  LocalContext env;
+
+  Local<v8::FunctionTemplate> templ = v8::FunctionTemplate::New();
+  Local<v8::ObjectTemplate> instance_templ = templ->InstanceTemplate();
+  instance_templ->SetInternalFieldCount(1);
+  Local<v8::Object> obj = templ->GetFunction()->NewInstance();
+  CHECK_EQ(1, obj->InternalFieldCount());
+
+  CheckAlignedPointerInInternalField(obj, NULL);
+
+  int* heap_allocated = new int[100];
+  CheckAlignedPointerInInternalField(obj, heap_allocated);
+  delete[] heap_allocated;
+
+  int stack_allocated[100];
+  CheckAlignedPointerInInternalField(obj, stack_allocated);
+
+  void* huge = reinterpret_cast<void*>(~static_cast<uintptr_t>(1));
+  CheckAlignedPointerInInternalField(obj, huge);
+}
+
+
+static void CheckAlignedPointerInEmbedderData(LocalContext* env,
+                                              int index,
+                                              void* value) {
+  CHECK_EQ(0, static_cast<int>(reinterpret_cast<uintptr_t>(value) & 0x1));
+  (*env)->SetAlignedPointerInEmbedderData(index, value);
+  HEAP->CollectAllGarbage(i::Heap::kNoGCFlags);
+  CHECK_EQ(value, (*env)->GetAlignedPointerFromEmbedderData(index));
+}
+
+
+static void* AlignedTestPointer(int i) {
+  return reinterpret_cast<void*>(i * 1234);
+}
+
+
+THREADED_TEST(EmbedderDataAlignedPointers) {
+  v8::HandleScope scope;
+  LocalContext env;
+
+  CheckAlignedPointerInEmbedderData(&env, 0, NULL);
+
+  int* heap_allocated = new int[100];
+  CheckAlignedPointerInEmbedderData(&env, 1, heap_allocated);
+  delete[] heap_allocated;
+
+  int stack_allocated[100];
+  CheckAlignedPointerInEmbedderData(&env, 2, stack_allocated);
+
+  void* huge = reinterpret_cast<void*>(~static_cast<uintptr_t>(1));
+  CheckAlignedPointerInEmbedderData(&env, 3, huge);
+
+  // Test growing of the embedder data's backing store.
+  for (int i = 0; i < 100; i++) {
+    env->SetAlignedPointerInEmbedderData(i, AlignedTestPointer(i));
+  }
+  HEAP->CollectAllGarbage(i::Heap::kNoGCFlags);
+  for (int i = 0; i < 100; i++) {
+    CHECK_EQ(AlignedTestPointer(i), env->GetAlignedPointerFromEmbedderData(i));
+  }
+}
+
+
+static void CheckEmbedderData(LocalContext* env,
+                              int index,
+                              v8::Handle<Value> data) {
+  (*env)->SetEmbedderData(index, data);
+  CHECK((*env)->GetEmbedderData(index)->StrictEquals(data));
+}
+
+THREADED_TEST(EmbedderData) {
+  v8::HandleScope scope;
+  LocalContext env;
+
+  CheckEmbedderData(&env, 3, v8::String::New("The quick brown fox jumps"));
+  CheckEmbedderData(&env, 2, v8::String::New("over the lazy dog."));
+  CheckEmbedderData(&env, 1, v8::Number::New(1.2345));
+  CheckEmbedderData(&env, 0, v8::Boolean::New(true));
+}
+
+
 THREADED_TEST(IdentityHash) {
   v8::HandleScope scope;
   LocalContext env;

test/cctest/test-debug.cc

@@ -27,6 +27,9 @@
 
 #ifdef ENABLE_DEBUGGER_SUPPORT
 
+// TODO(svenpanne): Do not use Context::GetData and Context::SetData.
+#define V8_DISABLE_DEPRECATIONS 1
+
 #include <stdlib.h>
 
 #include "v8.h"

test/cctest/test-decls.cc

@@ -190,7 +190,8 @@ v8::Handle<Integer> DeclarationContext::HandleQuery(Local<String> key,
 
 
 DeclarationContext* DeclarationContext::GetInstance(const AccessorInfo& info) {
-  return static_cast<DeclarationContext*>(External::Unwrap(info.Data()));
+  void* value = External::Cast(*info.Data())->Value();
+  return static_cast<DeclarationContext*>(value);
 }
 
 

tools/grokdump.py

@@ -863,80 +863,82 @@ INSTANCE_TYPES = {
 # }
 # printf("}\n");
 KNOWN_MAPS = {
-  0x08081: (134, "ByteArrayMap"),
-  0x080a1: (128, "MetaMap"),
-  0x080c1: (130, "OddballMap"),
-  0x080e1: (163, "FixedArrayMap"),
-  0x08101: (68, "AsciiSymbolMap"),
-  0x08121: (132, "HeapNumberMap"),
-  0x08141: (135, "FreeSpaceMap"),
-  0x08161: (146, "OnePointerFillerMap"),
-  0x08181: (146, "TwoPointerFillerMap"),
-  0x081a1: (131, "GlobalPropertyCellMap"),
-  0x081c1: (164, "SharedFunctionInfoMap"),
-  0x081e1: (4, "AsciiStringMap"),
-  0x08201: (163, "GlobalContextMap"),
-  0x08221: (129, "CodeMap"),
-  0x08241: (163, "ScopeInfoMap"),
-  0x08261: (163, "FixedCOWArrayMap"),
-  0x08281: (145, "FixedDoubleArrayMap"),
-  0x082a1: (163, "HashTableMap"),
-  0x082c1: (0, "StringMap"),
-  0x082e1: (64, "SymbolMap"),
-  0x08301: (1, "ConsStringMap"),
-  0x08321: (5, "ConsAsciiStringMap"),
-  0x08341: (3, "SlicedStringMap"),
-  0x08361: (7, "SlicedAsciiStringMap"),
-  0x08381: (65, "ConsSymbolMap"),
-  0x083a1: (69, "ConsAsciiSymbolMap"),
-  0x083c1: (66, "ExternalSymbolMap"),
-  0x083e1: (74, "ExternalSymbolWithAsciiDataMap"),
-  0x08401: (70, "ExternalAsciiSymbolMap"),
-  0x08421: (2, "ExternalStringMap"),
-  0x08441: (10, "ExternalStringWithAsciiDataMap"),
-  0x08461: (6, "ExternalAsciiStringMap"),
-  0x08481: (82, "ShortExternalSymbolMap"),
-  0x084a1: (90, "ShortExternalSymbolWithAsciiDataMap"),
-  0x084c1: (86, "ShortExternalAsciiSymbolMap"),
-  0x084e1: (18, "ShortExternalStringMap"),
-  0x08501: (26, "ShortExternalStringWithAsciiDataMap"),
-  0x08521: (22, "ShortExternalAsciiStringMap"),
-  0x08541: (0, "UndetectableStringMap"),
-  0x08561: (4, "UndetectableAsciiStringMap"),
-  0x08581: (144, "ExternalPixelArrayMap"),
-  0x085a1: (136, "ExternalByteArrayMap"),
-  0x085c1: (137, "ExternalUnsignedByteArrayMap"),
-  0x085e1: (138, "ExternalShortArrayMap"),
-  0x08601: (139, "ExternalUnsignedShortArrayMap"),
-  0x08621: (140, "ExternalIntArrayMap"),
-  0x08641: (141, "ExternalUnsignedIntArrayMap"),
-  0x08661: (142, "ExternalFloatArrayMap"),
-  0x08681: (143, "ExternalDoubleArrayMap"),
-  0x086a1: (163, "NonStrictArgumentsElementsMap"),
-  0x086c1: (163, "FunctionContextMap"),
-  0x086e1: (163, "CatchContextMap"),
-  0x08701: (163, "WithContextMap"),
-  0x08721: (163, "BlockContextMap"),
-  0x08741: (163, "ModuleContextMap"),
-  0x08761: (165, "JSMessageObjectMap"),
-  0x08781: (133, "ForeignMap"),
-  0x087a1: (170, "NeanderMap"),
-  0x087c1: (158, "PolymorphicCodeCacheMap"),
-  0x087e1: (156, "ScriptMap"),
-  0x08801: (147, "AccessorInfoMap"),
-  0x08821: (148, "AccessorPairMap"),
-  0x08841: (149, "AccessCheckInfoMap"),
-  0x08861: (150, "InterceptorInfoMap"),
-  0x08881: (151, "CallHandlerInfoMap"),
-  0x088a1: (152, "FunctionTemplateInfoMap"),
-  0x088c1: (153, "ObjectTemplateInfoMap"),
-  0x088e1: (154, "SignatureInfoMap"),
-  0x08901: (155, "TypeSwitchInfoMap"),
-  0x08921: (157, "CodeCacheMap"),
-  0x08941: (159, "TypeFeedbackInfoMap"),
-  0x08961: (160, "AliasedArgumentsEntryMap"),
-  0x08981: (161, "DebugInfoMap"),
-  0x089a1: (162, "BreakPointInfoMap"),
+  0x08081: (128, "MetaMap"),
+  0x080a5: (163, "FixedArrayMap"),
+  0x080c9: (130, "OddballMap"),
+  0x080ed: (163, "FixedCOWArrayMap"),
+  0x08111: (163, "ScopeInfoMap"),
+  0x08135: (132, "HeapNumberMap"),
+  0x08159: (133, "ForeignMap"),
+  0x0817d: (64, "SymbolMap"),
+  0x081a1: (68, "AsciiSymbolMap"),
+  0x081c5: (65, "ConsSymbolMap"),
+  0x081e9: (69, "ConsAsciiSymbolMap"),
+  0x0820d: (66, "ExternalSymbolMap"),
+  0x08231: (74, "ExternalSymbolWithAsciiDataMap"),
+  0x08255: (70, "ExternalAsciiSymbolMap"),
+  0x08279: (82, "ShortExternalSymbolMap"),
+  0x0829d: (90, "ShortExternalSymbolWithAsciiDataMap"),
+  0x082c1: (86, "ShortExternalAsciiSymbolMap"),
+  0x082e5: (0, "StringMap"),
+  0x08309: (4, "AsciiStringMap"),
+  0x0832d: (1, "ConsStringMap"),
+  0x08351: (5, "ConsAsciiStringMap"),
+  0x08375: (3, "SlicedStringMap"),
+  0x08399: (7, "SlicedAsciiStringMap"),
+  0x083bd: (2, "ExternalStringMap"),
+  0x083e1: (10, "ExternalStringWithAsciiDataMap"),
+  0x08405: (6, "ExternalAsciiStringMap"),
+  0x08429: (18, "ShortExternalStringMap"),
+  0x0844d: (26, "ShortExternalStringWithAsciiDataMap"),
+  0x08471: (22, "ShortExternalAsciiStringMap"),
+  0x08495: (0, "UndetectableStringMap"),
+  0x084b9: (4, "UndetectableAsciiStringMap"),
+  0x084dd: (145, "FixedDoubleArrayMap"),
+  0x08501: (134, "ByteArrayMap"),
+  0x08525: (135, "FreeSpaceMap"),
+  0x08549: (144, "ExternalPixelArrayMap"),
+  0x0856d: (136, "ExternalByteArrayMap"),
+  0x08591: (137, "ExternalUnsignedByteArrayMap"),
+  0x085b5: (138, "ExternalShortArrayMap"),
+  0x085d9: (139, "ExternalUnsignedShortArrayMap"),
+  0x085fd: (140, "ExternalIntArrayMap"),
+  0x08621: (141, "ExternalUnsignedIntArrayMap"),
+  0x08645: (142, "ExternalFloatArrayMap"),
+  0x08669: (163, "NonStrictArgumentsElementsMap"),
+  0x0868d: (143, "ExternalDoubleArrayMap"),
+  0x086b1: (129, "CodeMap"),
+  0x086d5: (131, "GlobalPropertyCellMap"),
+  0x086f9: (146, "OnePointerFillerMap"),
+  0x0871d: (146, "TwoPointerFillerMap"),
+  0x08741: (147, "AccessorInfoMap"),
+  0x08765: (148, "AccessorPairMap"),
+  0x08789: (149, "AccessCheckInfoMap"),
+  0x087ad: (150, "InterceptorInfoMap"),
+  0x087d1: (151, "CallHandlerInfoMap"),
+  0x087f5: (152, "FunctionTemplateInfoMap"),
+  0x08819: (153, "ObjectTemplateInfoMap"),
+  0x0883d: (154, "SignatureInfoMap"),
+  0x08861: (155, "TypeSwitchInfoMap"),
+  0x08885: (156, "ScriptMap"),
+  0x088a9: (157, "CodeCacheMap"),
+  0x088cd: (158, "PolymorphicCodeCacheMap"),
+  0x088f1: (159, "TypeFeedbackInfoMap"),
+  0x08915: (160, "AliasedArgumentsEntryMap"),
+  0x08939: (161, "DebugInfoMap"),
+  0x0895d: (162, "BreakPointInfoMap"),
+  0x08981: (163, "HashTableMap"),
+  0x089a5: (163, "FunctionContextMap"),
+  0x089c9: (163, "CatchContextMap"),
+  0x089ed: (163, "WithContextMap"),
+  0x08a11: (163, "BlockContextMap"),
+  0x08a35: (163, "ModuleContextMap"),
+  0x08a59: (163, "GlobalContextMap"),
+  0x08a7d: (163, "NativeContextMap"),
+  0x08aa1: (164, "SharedFunctionInfoMap"),
+  0x08ac5: (165, "JSMessageObjectMap"),
+  0x08ae9: (170, "ExternalMap"),
+  0x08b0d: (170, "NeanderMap"),
 }