Index: third_party/WebKit/Source/bindings/core/v8/V8SnapshotUtil.cpp |
diff --git a/third_party/WebKit/Source/bindings/core/v8/V8SnapshotUtil.cpp b/third_party/WebKit/Source/bindings/core/v8/V8SnapshotUtil.cpp |
new file mode 100644 |
index 0000000000000000000000000000000000000000..ceff87709173cb1dcbe4f162100c9b39dd051683 |
--- /dev/null |
+++ b/third_party/WebKit/Source/bindings/core/v8/V8SnapshotUtil.cpp |
@@ -0,0 +1,493 @@ |
+// Copyright 2017 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#include "bindings/core/v8/V8SnapshotUtil.h" |
+ |
+#include <array> |
+#include <cstring> |
+ |
+#include "bindings/core/v8/GeneratedCodeHelper.h" |
+#include "bindings/core/v8/V8Document.h" |
+#include "bindings/core/v8/V8EventTarget.h" |
+#include "bindings/core/v8/V8HTMLDocument.h" |
+#include "bindings/core/v8/V8Initializer.h" |
+#include "bindings/core/v8/V8Node.h" |
+#include "bindings/core/v8/V8Window.h" |
+#include "platform/bindings/DOMWrapperWorld.h" |
+#include "platform/bindings/V8ObjectConstructor.h" |
+#include "platform/bindings/V8PerIsolateData.h" |
+#include "platform/bindings/V8PrivateProperty.h" |
+#include "v8/include/v8.h" |
+ |
+namespace blink { |
+ |
+namespace { |
+ |
+intptr_t* g_snapshot_reference_table = nullptr; |
+ |
+// TODO(peria): This method is almost a copy of |
+// V8PerContext::ConstructorForTypeSlowCase(), so merge with it. |
+v8::Local<v8::Function> ConstructPlainType(v8::Isolate* isolate, |
+ const DOMWrapperWorld& world, |
+ v8::Local<v8::Context> context, |
+ const WrapperTypeInfo* type) { |
+ v8::Context::Scope scope(context); |
+ // We shouldn't reach this point for the types that are implemented in v8 such |
+ // as typed arrays and hence don't have domTemplateFunction. |
+ DCHECK(type->dom_template_function); |
+ v8::Local<v8::FunctionTemplate> interface_template = |
+ type->domTemplate(isolate, world); |
+ // Getting the function might fail if we're running out of stack or memory. |
+ v8::Local<v8::Function> interface_object = |
+ interface_template->GetFunction(context).ToLocalChecked(); |
+ |
+ if (type->parent_class) { |
+ v8::Local<v8::Object> prototype_template = |
+ ConstructPlainType(isolate, world, context, type->parent_class); |
+ CHECK(interface_object->SetPrototype(context, prototype_template) |
+ .ToChecked()); |
+ } |
+ |
+ v8::Local<v8::Value> prototype_value = |
+ interface_object->Get(context, V8AtomicString(isolate, "prototype")) |
+ .ToLocalChecked(); |
+ CHECK(prototype_value->IsObject()); |
+ v8::Local<v8::Object> prototype_object = prototype_value.As<v8::Object>(); |
+ if (prototype_object->InternalFieldCount() == |
+ kV8PrototypeInternalFieldcount && |
+ type->wrapper_type_prototype == |
+ WrapperTypeInfo::kWrapperTypeObjectPrototype) { |
+ prototype_object->SetAlignedPointerInInternalField( |
+ kV8PrototypeTypeIndex, const_cast<WrapperTypeInfo*>(type)); |
+ } |
+ type->PreparePrototypeAndInterfaceObject( |
+ context, world, prototype_object, interface_object, interface_template); |
+ |
+ return interface_object; |
+} |
+ |
+// TODO(peria): This method is almost a copy of |
+// V8PerContext::CreateWrapperFromCacheSlowCase(), so merge with it. |
+v8::Local<v8::Object> CreatePlainWrapper(v8::Isolate* isolate, |
+ const DOMWrapperWorld& world, |
+ v8::Local<v8::Context> context, |
+ const WrapperTypeInfo* type) { |
+ CHECK(V8HTMLDocument::wrapperTypeInfo.Equals(type)); |
+ |
+ v8::Context::Scope scope(context); |
+ v8::Local<v8::Function> interface_object = |
+ ConstructPlainType(isolate, world, context, type); |
+ CHECK(!interface_object.IsEmpty()); |
+ v8::Local<v8::Object> instance_template = |
+ V8ObjectConstructor::NewInstance(isolate, interface_object) |
+ .ToLocalChecked(); |
+ v8::Local<v8::Object> wrapper = instance_template->Clone(); |
+ wrapper->SetAlignedPointerInInternalField(kV8DOMWrapperTypeIndex, |
+ const_cast<WrapperTypeInfo*>(type)); |
+ return wrapper; |
+} |
+ |
+constexpr int kWorldIdForNonMainWorld = |
+ DOMWrapperWorld::WorldId::kIsolatedWorldIdLimit - 1; |
+ |
+int GetSnapshotIndexForWorld(const DOMWrapperWorld& world) { |
+ return world.IsMainWorld() ? 0 : 1; |
+} |
+ |
+constexpr const WrapperTypeInfo* kSnapshotWrapperTypes[] = { |
+ &V8Window::wrapperTypeInfo, &V8HTMLDocument::wrapperTypeInfo, |
+ &V8EventTarget::wrapperTypeInfo, &V8Node::wrapperTypeInfo, |
+ &V8Document::wrapperTypeInfo, |
+}; |
+constexpr size_t kSnapshotWrapperSize = WTF_ARRAY_LENGTH(kSnapshotWrapperTypes); |
+ |
+enum class InternalFieldType : uint8_t { |
+ kNone, |
+ kNodeType, |
+ kDocumentType, |
+ kHTMLDocumentType, |
+ kHTMLDocumentObject, |
+}; |
+ |
+const WrapperTypeInfo* FieldTypeToWrapperTypeInfo(InternalFieldType type) { |
+ switch (type) { |
+ case InternalFieldType::kNone: |
+ NOTREACHED(); |
+ break; |
+ case InternalFieldType::kNodeType: |
+ return &V8Node::wrapperTypeInfo; |
+ case InternalFieldType::kDocumentType: |
+ return &V8Document::wrapperTypeInfo; |
+ case InternalFieldType::kHTMLDocumentType: |
+ return &V8HTMLDocument::wrapperTypeInfo; |
+ case InternalFieldType::kHTMLDocumentObject: |
+ return &V8HTMLDocument::wrapperTypeInfo; |
+ } |
+ NOTREACHED(); |
+ return nullptr; |
+} |
+ |
+struct DataForDeserializer { |
+ STACK_ALLOCATED(); |
+ Member<Document> document; |
+}; |
+ |
+int CountExternalReferenceEntries() { |
+ if (!g_snapshot_reference_table) |
+ return 0; |
+ |
+ int count = 0; |
+ for (intptr_t* p = g_snapshot_reference_table; *p; ++p) |
+ ++count; |
+ return count; |
+} |
+ |
+} // namespace |
+ |
+v8::Local<v8::Context> V8SnapshotUtil::CreateContext( |
+ v8::Isolate* isolate, |
+ const DOMWrapperWorld& world, |
+ v8::ExtensionConfiguration* extension_configuration, |
+ v8::Local<v8::Object> global_proxy, |
+ Document* document) { |
+ if (!CanCreateContextFromSnapshot(isolate, world, document)) { |
+ return v8::Local<v8::Context>(); |
+ } |
+ |
+ const int index = GetSnapshotIndexForWorld(world); |
+ DataForDeserializer data{document}; |
+ v8::DeserializeInternalFieldsCallback callback = |
+ v8::DeserializeInternalFieldsCallback(&DeserializeInternalField, &data); |
+ v8::Local<v8::Context> context = |
+ v8::Context::FromSnapshot(isolate, index, callback, |
+ extension_configuration, global_proxy) |
+ .ToLocalChecked(); |
+ CHECK(!context.IsEmpty()); |
Yuki
2017/06/27 12:43:47
This CHECK is meaningless after ToLocalChecked().
peria
2017/06/28 03:02:43
Done.
|
+ DLOG(INFO) << "A context is created from snapshot for " |
+ << (world.IsMainWorld() ? "" : "non-") << "main world"; |
+ |
+ return context; |
+} |
+ |
+void V8SnapshotUtil::SetupContext(v8::Local<v8::Context> context, |
+ Document* document) { |
+ ScriptState* script_state = ScriptState::From(context); |
+ v8::Isolate* isolate = script_state->GetIsolate(); |
+ const DOMWrapperWorld& world = script_state->World(); |
+ if (!CanCreateContextFromSnapshot(isolate, world, document)) { |
+ return; |
+ } |
+ |
+ v8::Local<v8::String> prototype_str = V8AtomicString(isolate, "prototype"); |
+ V8PerContextData* data = script_state->PerContextData(); |
+ |
+ v8::Local<v8::Object> global_proxy = context->Global(); |
+ v8::Local<v8::Object> window_wrapper = |
+ global_proxy->GetPrototype().As<v8::Object>(); |
+ { |
+ const WrapperTypeInfo* type = &V8EventTarget::wrapperTypeInfo; |
+ v8::Local<v8::Function> interface = data->ConstructorForType(type); |
+ v8::Local<v8::Object> prototype = interface->Get(context, prototype_str) |
+ .ToLocalChecked() |
+ .As<v8::Object>(); |
+ V8EventTarget::InstallRuntimeEnabledFeatures(isolate, world, window_wrapper, |
Yuki
2017/06/27 12:43:47
I'm confused again. Exactly what InstallRuntimeEn
peria
2017/06/28 03:02:43
Ah, I think your understanding is correct.
No need
|
+ prototype, interface); |
+ } |
+ { |
+ const WrapperTypeInfo* type = &V8Window::wrapperTypeInfo; |
+ v8::Local<v8::Function> interface = data->ConstructorForType(type); |
+ v8::Local<v8::Object> prototype = interface->Get(context, prototype_str) |
+ .ToLocalChecked() |
+ .As<v8::Object>(); |
+ V8Window::install_runtime_enabled_features_function_( |
+ isolate, world, window_wrapper, prototype, interface); |
+ } |
+ |
+ if (world.IsMainWorld()) { |
Yuki
2017/06/27 12:43:49
nit: Can we do an early-exit?
peria
2017/06/28 03:02:43
Done.
|
+ CHECK(document); |
+ DCHECK(document->IsHTMLDocument()); |
+ CHECK(document->ContainsWrapper()); |
+ v8::Local<v8::Object> document_wrapper = |
+ document->MainWorldWrapper(isolate); |
Yuki
2017/06/27 12:43:47
Is this the only reason that V8SnapshotUtil needs
peria
2017/06/28 03:02:43
Done.
|
+ |
+ { |
+ // Prototype object and interface object of EventTarget were set up with |
+ // Window wrapper. |
+ V8EventTarget::InstallRuntimeEnabledFeatures( |
+ isolate, world, document_wrapper, v8::Local<v8::Object>(), |
+ v8::Local<v8::Function>()); |
+ } |
+ { |
+ const WrapperTypeInfo* type = &V8Node::wrapperTypeInfo; |
+ v8::Local<v8::Function> interface = data->ConstructorForType(type); |
+ v8::Local<v8::Object> prototype = interface->Get(context, prototype_str) |
+ .ToLocalChecked() |
+ .As<v8::Object>(); |
+ V8Node::InstallRuntimeEnabledFeatures(isolate, world, document_wrapper, |
+ prototype, interface); |
+ } |
+ { |
+ const WrapperTypeInfo* type = &V8Document::wrapperTypeInfo; |
+ v8::Local<v8::Function> interface = data->ConstructorForType(type); |
+ v8::Local<v8::Object> prototype = interface->Get(context, prototype_str) |
+ .ToLocalChecked() |
+ .As<v8::Object>(); |
+ V8Document::InstallRuntimeEnabledFeatures( |
+ isolate, world, document_wrapper, prototype, interface); |
+ } |
+ { |
+ const WrapperTypeInfo* type = &V8HTMLDocument::wrapperTypeInfo; |
+ v8::Local<v8::Function> interface = data->ConstructorForType(type); |
+ v8::Local<v8::Object> prototype = interface->Get(context, prototype_str) |
+ .ToLocalChecked() |
+ .As<v8::Object>(); |
+ V8HTMLDocument::InstallRuntimeEnabledFeatures( |
+ isolate, world, document_wrapper, prototype, interface); |
+ } |
+ } |
+} |
+ |
+void V8SnapshotUtil::EnsureInterfaceTemplates(v8::Isolate* isolate) { |
+ if (V8PerIsolateData::From(isolate)->GetV8ContextMode() != |
+ V8PerIsolateData::V8ContextMode::kUseSnapshot) { |
+ return; |
+ } |
+ |
+ EnsureInterfaceTemplatesForWorld(isolate, DOMWrapperWorld::MainWorld()); |
+ EnsureInterfaceTemplatesForWorld( |
+ isolate, |
+ *DOMWrapperWorld::EnsureIsolatedWorld(isolate, kWorldIdForNonMainWorld)); |
+} |
+ |
+void V8SnapshotUtil::SetReferenceTable(intptr_t* table) { |
+ DCHECK(!g_snapshot_reference_table); |
+ g_snapshot_reference_table = table; |
+} |
+ |
+intptr_t* V8SnapshotUtil::GetReferenceTable() { |
+ DCHECK(g_snapshot_reference_table); |
+ return g_snapshot_reference_table; |
+} |
+ |
+v8::StartupData V8SnapshotUtil::TakeSnapshot() { |
+ DCHECK_EQ(V8PerIsolateData::From(V8PerIsolateData::MainThreadIsolate()) |
+ ->GetV8ContextMode(), |
+ V8PerIsolateData::V8ContextMode::kTakeSnapshot); |
+ |
+ v8::SnapshotCreator* creator = |
+ V8PerIsolateData::From(V8PerIsolateData::MainThreadIsolate()) |
+ ->GetSnapshotCreator(); |
+ v8::Isolate* isolate = creator->GetIsolate(); |
+ CHECK_EQ(isolate, v8::Isolate::GetCurrent()); |
+ |
+ VLOG(1) << "External reference table has " << CountExternalReferenceEntries() |
+ << " entries."; |
+ |
+ // Disable all runtime enabled featuers |
+ RuntimeEnabledFeatures::SetStableFeaturesEnabled(false); |
+ RuntimeEnabledFeatures::SetExperimentalFeaturesEnabled(false); |
+ RuntimeEnabledFeatures::SetTestFeaturesEnabled(false); |
+ |
+ { |
+ v8::HandleScope handleScope(isolate); |
+ creator->SetDefaultContext(v8::Context::New(isolate)); |
+ |
+ TakeSnapshotForWorld(creator, DOMWrapperWorld::MainWorld()); |
+ // For non main worlds, we can use any type to create a context. |
+ TakeSnapshotForWorld(creator, *DOMWrapperWorld::EnsureIsolatedWorld( |
+ isolate, kWorldIdForNonMainWorld)); |
+ } |
+ |
+ // Snapshot is taken on the main thread, but it can be used on other threads. |
+ // So we remove a message handler for the main thread. |
+ isolate->RemoveMessageListeners(V8Initializer::MessageHandlerInMainThread); |
+ |
+ return creator->CreateBlob(v8::SnapshotCreator::FunctionCodeHandling::kClear); |
+} |
+ |
+v8::StartupData V8SnapshotUtil::SerializeInternalField( |
+ v8::Local<v8::Object> object, |
+ int index, |
+ void*) { |
+ InternalFieldType field_type = InternalFieldType::kNone; |
+ const WrapperTypeInfo* wrapper_type = ToWrapperTypeInfo(object); |
+ if (kV8DOMWrapperObjectIndex == index) { |
+ if (blink::V8HTMLDocument::wrapperTypeInfo.Equals(wrapper_type)) { |
+ field_type = InternalFieldType::kHTMLDocumentObject; |
+ } |
+ } else if (kV8DOMWrapperTypeIndex == index) { |
+ if (blink::V8HTMLDocument::wrapperTypeInfo.Equals(wrapper_type)) { |
+ field_type = InternalFieldType::kHTMLDocumentType; |
+ } else if (blink::V8Document::wrapperTypeInfo.Equals(wrapper_type)) { |
+ field_type = InternalFieldType::kDocumentType; |
+ } else if (blink::V8Node::wrapperTypeInfo.Equals(wrapper_type)) { |
+ field_type = InternalFieldType::kNodeType; |
+ } |
+ } |
+ CHECK_NE(field_type, InternalFieldType::kNone); |
+ |
+ int size = sizeof(InternalFieldType); |
+ char* data = new char[size]; |
+ std::memcpy(data, &field_type, size); |
+ |
+ return {data, size}; |
+} |
+ |
+void V8SnapshotUtil::DeserializeInternalField(v8::Local<v8::Object> object, |
+ int index, |
+ v8::StartupData payload, |
+ void* ptr) { |
+ // DeserializeInternalField() expects to be called in the main world |
+ // with |document| being HTMLDocument. |
+ CHECK_EQ(payload.raw_size, static_cast<int>(sizeof(InternalFieldType))); |
+ InternalFieldType type = |
+ *reinterpret_cast<const InternalFieldType*>(payload.data); |
+ |
+ const WrapperTypeInfo* wrapper_type_info = FieldTypeToWrapperTypeInfo(type); |
+ switch (type) { |
+ case InternalFieldType::kNodeType: |
+ case InternalFieldType::kDocumentType: |
+ case InternalFieldType::kHTMLDocumentType: { |
+ CHECK_EQ(index, kV8DOMWrapperTypeIndex); |
+ object->SetAlignedPointerInInternalField( |
+ index, const_cast<WrapperTypeInfo*>(wrapper_type_info)); |
+ return; |
+ } |
+ case InternalFieldType::kHTMLDocumentObject: { |
+ LOG(INFO) << "wrapper"; |
+ CHECK_EQ(index, kV8DOMWrapperObjectIndex); |
+ LOG(INFO) << "setting document wrapper"; |
+ v8::Isolate* isolate = v8::Isolate::GetCurrent(); |
+ DataForDeserializer* data = static_cast<DataForDeserializer*>(ptr); |
+ ScriptWrappable* document = data->document; |
+ DCHECK(document); |
+ |
+ // Make reference from wrapper to document |
+ object->SetAlignedPointerInInternalField(index, document); |
+ // Make reference from document to wrapper |
+ CHECK(document->SetWrapper(isolate, wrapper_type_info, object)); |
+ WrapperTypeInfo::WrapperCreated(); |
+ return; |
+ } |
+ case InternalFieldType::kNone: |
+ NOTREACHED(); |
+ return; |
+ } |
+ |
+ NOTREACHED(); |
+} |
+ |
+bool V8SnapshotUtil::CanCreateContextFromSnapshot(v8::Isolate* isolate, |
+ const DOMWrapperWorld& world, |
+ Document* document) { |
Yuki
2017/06/27 12:43:47
nit: Can we add DCHECK(document)?
If document ==
peria
2017/06/28 03:02:43
Done.
|
+ if (V8PerIsolateData::From(isolate)->GetV8ContextMode() != |
+ V8PerIsolateData::V8ContextMode::kUseSnapshot) { |
+ return false; |
+ } |
+ // In case we create a context for the main world from snapshot, we also need |
+ // a HTMLDocument wrapper. |
+ if (world.IsMainWorld() && !(document && document->IsHTMLDocument())) { |
Yuki
2017/06/27 12:43:47
nit: A→B is defined as ¬A∨B, hence (!A || B) is on
peria
2017/06/28 03:02:43
Done.
|
+ return false; |
+ } |
+ return true; |
+} |
+ |
+void V8SnapshotUtil::EnsureInterfaceTemplatesForWorld( |
+ v8::Isolate* isolate, |
+ const DOMWrapperWorld& world) { |
+ V8PerIsolateData* data = V8PerIsolateData::From(isolate); |
+ for (const WrapperTypeInfo* wrapper_type_info : kSnapshotWrapperTypes) { |
+ v8::Local<v8::FunctionTemplate> interface = |
+ InterfaceTemplateFromSnapshot(isolate, world, wrapper_type_info); |
+ CHECK(!interface.IsEmpty()); |
+ data->SetInterfaceTemplate(world, wrapper_type_info, interface); |
+ } |
+} |
+ |
+v8::Local<v8::FunctionTemplate> V8SnapshotUtil::InterfaceTemplateFromSnapshot( |
+ v8::Isolate* isolate, |
+ const DOMWrapperWorld& world, |
+ const WrapperTypeInfo* wrapper_type_info) { |
+ static const InstallRuntimeEnabledFeaturesOnTemplateFunction kInstallers[] = { |
Yuki
2017/06/27 12:43:49
Maybe my comment was unclear. I was recommending
peria
2017/06/28 03:02:43
Done.
|
+ V8Window::install_runtime_enabled_features_on_template_function_, |
+ V8HTMLDocument::InstallRuntimeEnabledFeaturesOnTemplate, |
+ V8EventTarget::InstallRuntimeEnabledFeaturesOnTemplate, |
+ V8Node::InstallRuntimeEnabledFeaturesOnTemplate, |
+ V8Document::InstallRuntimeEnabledFeaturesOnTemplate, |
+ }; |
+ |
+ const int index_offset = world.IsMainWorld() ? 0 : kSnapshotWrapperSize; |
+ |
+ for (size_t i = 0; i < kSnapshotWrapperSize; ++i) { |
+ if (kSnapshotWrapperTypes[i]->Equals(wrapper_type_info)) { |
+ v8::Local<v8::FunctionTemplate> interface_template = |
+ v8::FunctionTemplate::FromSnapshot(isolate, index_offset + i) |
+ .ToLocalChecked(); |
+ kInstallers[i](isolate, world, interface_template); |
Yuki
2017/06/27 12:43:49
Just a comment for future work, it's not good to h
peria
2017/06/28 03:02:43
Acknowledged.
|
+ return interface_template; |
+ } |
+ } |
+ |
+ NOTREACHED(); |
+ return v8::Local<v8::FunctionTemplate>(); |
+} |
+ |
+void V8SnapshotUtil::TakeSnapshotForWorld(v8::SnapshotCreator* creator, |
+ const DOMWrapperWorld& world) { |
+ v8::Isolate* isolate = creator->GetIsolate(); |
+ CHECK_EQ(isolate, v8::Isolate::GetCurrent()); |
+ |
+ // Function templates |
+ v8::HandleScope handleScope(isolate); |
+ std::array<v8::Local<v8::FunctionTemplate>, kSnapshotWrapperSize> |
+ interface_templates; |
+ v8::Local<v8::FunctionTemplate> window_template; |
+ for (size_t i = 0; i < kSnapshotWrapperSize; ++i) { |
+ const WrapperTypeInfo* wrapper_type_info = kSnapshotWrapperTypes[i]; |
+ v8::Local<v8::FunctionTemplate> interface_template = |
+ wrapper_type_info->domTemplate(isolate, world); |
+ CHECK(!interface_template.IsEmpty()); |
+ interface_templates[i] = interface_template; |
+ if (V8Window::wrapperTypeInfo.Equals(wrapper_type_info)) { |
+ window_template = interface_template; |
+ } |
+ } |
+ CHECK(!window_template.IsEmpty()); |
+ |
+ v8::Local<v8::ObjectTemplate> window_instance_template = |
+ window_template->InstanceTemplate(); |
+ CHECK(!window_instance_template.IsEmpty()); |
+ |
+ v8::Local<v8::Context> context; |
+ { |
+ V8PerIsolateData::UseCounterDisabledScope use_counter_disabled( |
+ V8PerIsolateData::From(isolate)); |
+ context = v8::Context::New(isolate, nullptr, window_instance_template); |
+ } |
+ CHECK(!context.IsEmpty()); |
+ |
+ if (world.IsMainWorld()) { |
+ v8::Context::Scope scope(context); |
+ v8::Local<v8::Object> document_wrapper = CreatePlainWrapper( |
+ isolate, world, context, &V8HTMLDocument::wrapperTypeInfo); |
+ int indices[] = {kV8DOMWrapperObjectIndex, kV8DOMWrapperTypeIndex}; |
+ void* values[] = {nullptr, const_cast<WrapperTypeInfo*>( |
+ &V8HTMLDocument::wrapperTypeInfo)}; |
+ document_wrapper->SetAlignedPointerInInternalFields( |
+ WTF_ARRAY_LENGTH(indices), indices, values); |
+ |
+ // Set the cached accessor for window.document. |
+ CHECK(V8PrivateProperty::GetWindowDocumentCachedAccessor(isolate).Set( |
+ context->Global(), document_wrapper)); |
+ } |
+ |
+ for (auto& interface_template : interface_templates) { |
+ creator->AddTemplate(interface_template); |
+ } |
+ creator->AddContext(context, SerializeInternalField); |
+ |
+ V8PerIsolateData::From(isolate)->ClearPersistentsForV8Snapshot(); |
+} |
+ |
+} // namespace blink |