844fe8f7d9
A StringView is pretty light, so this should be similar to how absl::string_view is typically used, e.g. see the guidance here: https://github.com/abseil/abseil-cpp/blob/master/absl/strings/string_view.h I suspect this reasoning holds even though StringView (defined just above StringBuffer in v8-inspector.h) carries an additional bool. This yields a small simplification of the StringBuffer implementations. Change-Id: I03f850049afe2327913070838f39649fcdfa6fa8 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2045110 Commit-Queue: Yang Guo <yangguo@chromium.org> Reviewed-by: Yang Guo <yangguo@chromium.org> Cr-Commit-Position: refs/heads/master@{#66858}
481 lines
18 KiB
C++
481 lines
18 KiB
C++
// Copyright 2017 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "test/inspector/isolate-data.h"
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#include "src/inspector/test-interface.h"
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#include "test/inspector/task-runner.h"
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namespace {
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const int kIsolateDataIndex = 2;
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const int kContextGroupIdIndex = 3;
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v8::internal::Vector<uint16_t> ToVector(v8::Isolate* isolate,
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v8::Local<v8::String> str) {
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v8::internal::Vector<uint16_t> buffer =
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v8::internal::Vector<uint16_t>::New(str->Length());
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str->Write(isolate, buffer.begin(), 0, str->Length());
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return buffer;
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}
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v8::Local<v8::String> ToString(v8::Isolate* isolate,
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const v8_inspector::StringView& string) {
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if (string.is8Bit())
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return v8::String::NewFromOneByte(isolate, string.characters8(),
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v8::NewStringType::kNormal,
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static_cast<int>(string.length()))
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.ToLocalChecked();
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else
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return v8::String::NewFromTwoByte(isolate, string.characters16(),
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v8::NewStringType::kNormal,
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static_cast<int>(string.length()))
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.ToLocalChecked();
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}
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void Print(v8::Isolate* isolate, const v8_inspector::StringView& string) {
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v8::Local<v8::String> v8_string = ToString(isolate, string);
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v8::String::Utf8Value utf8_string(isolate, v8_string);
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fwrite(*utf8_string, sizeof(**utf8_string), utf8_string.length(), stdout);
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}
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class Inspectable : public v8_inspector::V8InspectorSession::Inspectable {
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public:
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Inspectable(v8::Isolate* isolate, v8::Local<v8::Value> object)
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: object_(isolate, object) {}
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~Inspectable() override = default;
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v8::Local<v8::Value> get(v8::Local<v8::Context> context) override {
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return object_.Get(context->GetIsolate());
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}
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private:
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v8::Global<v8::Value> object_;
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};
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} // namespace
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IsolateData::IsolateData(TaskRunner* task_runner,
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IsolateData::SetupGlobalTasks setup_global_tasks,
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v8::StartupData* startup_data, bool with_inspector)
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: task_runner_(task_runner),
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setup_global_tasks_(std::move(setup_global_tasks)) {
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v8::Isolate::CreateParams params;
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array_buffer_allocator_.reset(
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v8::ArrayBuffer::Allocator::NewDefaultAllocator());
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params.array_buffer_allocator = array_buffer_allocator_.get();
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params.snapshot_blob = startup_data;
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params.only_terminate_in_safe_scope = true;
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isolate_.reset(v8::Isolate::New(params));
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isolate_->SetMicrotasksPolicy(v8::MicrotasksPolicy::kScoped);
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if (with_inspector) {
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isolate_->AddMessageListener(&IsolateData::MessageHandler);
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isolate_->SetPromiseRejectCallback(&IsolateData::PromiseRejectHandler);
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inspector_ = v8_inspector::V8Inspector::create(isolate_.get(), this);
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}
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v8::HandleScope handle_scope(isolate_.get());
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not_inspectable_private_.Reset(
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isolate_.get(),
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v8::Private::ForApi(
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isolate_.get(),
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v8::String::NewFromUtf8Literal(isolate_.get(), "notInspectable")));
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}
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IsolateData* IsolateData::FromContext(v8::Local<v8::Context> context) {
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return static_cast<IsolateData*>(
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context->GetAlignedPointerFromEmbedderData(kIsolateDataIndex));
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}
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int IsolateData::CreateContextGroup() {
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v8::HandleScope handle_scope(isolate_.get());
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v8::Local<v8::ObjectTemplate> global_template =
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v8::ObjectTemplate::New(isolate_.get());
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for (auto it = setup_global_tasks_.begin(); it != setup_global_tasks_.end();
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++it) {
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(*it)->Run(isolate_.get(), global_template);
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}
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v8::Local<v8::Context> context =
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v8::Context::New(isolate_.get(), nullptr, global_template);
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context->SetAlignedPointerInEmbedderData(kIsolateDataIndex, this);
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int context_group_id = ++last_context_group_id_;
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// Should be 2-byte aligned.
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context->SetAlignedPointerInEmbedderData(
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kContextGroupIdIndex, reinterpret_cast<void*>(context_group_id * 2));
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contexts_[context_group_id].Reset(isolate_.get(), context);
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if (inspector_) FireContextCreated(context, context_group_id);
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return context_group_id;
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}
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v8::Local<v8::Context> IsolateData::GetContext(int context_group_id) {
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return contexts_[context_group_id].Get(isolate_.get());
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}
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void IsolateData::ResetContextGroup(int context_group_id) {
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v8::SealHandleScope seal_handle_scope(isolate());
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inspector_->resetContextGroup(context_group_id);
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}
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int IsolateData::GetContextGroupId(v8::Local<v8::Context> context) {
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return static_cast<int>(
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reinterpret_cast<intptr_t>(
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context->GetAlignedPointerFromEmbedderData(kContextGroupIdIndex)) /
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2);
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}
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void IsolateData::RegisterModule(v8::Local<v8::Context> context,
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v8::internal::Vector<uint16_t> name,
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v8::ScriptCompiler::Source* source) {
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v8::Local<v8::Module> module;
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if (!v8::ScriptCompiler::CompileModule(isolate(), source).ToLocal(&module))
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return;
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if (!module->InstantiateModule(context, &IsolateData::ModuleResolveCallback)
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.FromMaybe(false)) {
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return;
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}
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v8::Local<v8::Value> result;
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if (!module->Evaluate(context).ToLocal(&result)) return;
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modules_[name] = v8::Global<v8::Module>(isolate_.get(), module);
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}
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// static
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v8::MaybeLocal<v8::Module> IsolateData::ModuleResolveCallback(
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v8::Local<v8::Context> context, v8::Local<v8::String> specifier,
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v8::Local<v8::Module> referrer) {
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IsolateData* data = IsolateData::FromContext(context);
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std::string str = *v8::String::Utf8Value(data->isolate(), specifier);
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return data->modules_[ToVector(data->isolate(), specifier)].Get(
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data->isolate());
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}
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int IsolateData::ConnectSession(int context_group_id,
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const v8_inspector::StringView& state,
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v8_inspector::V8Inspector::Channel* channel) {
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v8::SealHandleScope seal_handle_scope(isolate());
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int session_id = ++last_session_id_;
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sessions_[session_id] = inspector_->connect(context_group_id, channel, state);
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context_group_by_session_[sessions_[session_id].get()] = context_group_id;
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return session_id;
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}
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std::vector<uint8_t> IsolateData::DisconnectSession(int session_id) {
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v8::SealHandleScope seal_handle_scope(isolate());
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auto it = sessions_.find(session_id);
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CHECK(it != sessions_.end());
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context_group_by_session_.erase(it->second.get());
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std::vector<uint8_t> result = it->second->state();
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sessions_.erase(it);
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return result;
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}
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void IsolateData::SendMessage(int session_id,
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const v8_inspector::StringView& message) {
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v8::SealHandleScope seal_handle_scope(isolate());
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auto it = sessions_.find(session_id);
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if (it != sessions_.end()) it->second->dispatchProtocolMessage(message);
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}
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void IsolateData::BreakProgram(int context_group_id,
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const v8_inspector::StringView& reason,
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const v8_inspector::StringView& details) {
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v8::SealHandleScope seal_handle_scope(isolate());
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for (int session_id : GetSessionIds(context_group_id)) {
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auto it = sessions_.find(session_id);
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if (it != sessions_.end()) it->second->breakProgram(reason, details);
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}
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}
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void IsolateData::SchedulePauseOnNextStatement(
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int context_group_id, const v8_inspector::StringView& reason,
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const v8_inspector::StringView& details) {
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v8::SealHandleScope seal_handle_scope(isolate());
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for (int session_id : GetSessionIds(context_group_id)) {
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auto it = sessions_.find(session_id);
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if (it != sessions_.end())
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it->second->schedulePauseOnNextStatement(reason, details);
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}
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}
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void IsolateData::CancelPauseOnNextStatement(int context_group_id) {
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v8::SealHandleScope seal_handle_scope(isolate());
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for (int session_id : GetSessionIds(context_group_id)) {
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auto it = sessions_.find(session_id);
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if (it != sessions_.end()) it->second->cancelPauseOnNextStatement();
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}
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}
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void IsolateData::AsyncTaskScheduled(const v8_inspector::StringView& name,
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void* task, bool recurring) {
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v8::SealHandleScope seal_handle_scope(isolate());
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inspector_->asyncTaskScheduled(name, task, recurring);
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}
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void IsolateData::AsyncTaskStarted(void* task) {
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v8::SealHandleScope seal_handle_scope(isolate());
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inspector_->asyncTaskStarted(task);
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}
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void IsolateData::AsyncTaskFinished(void* task) {
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v8::SealHandleScope seal_handle_scope(isolate());
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inspector_->asyncTaskFinished(task);
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}
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v8_inspector::V8StackTraceId IsolateData::StoreCurrentStackTrace(
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const v8_inspector::StringView& description) {
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v8::SealHandleScope seal_handle_scope(isolate());
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return inspector_->storeCurrentStackTrace(description);
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}
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void IsolateData::ExternalAsyncTaskStarted(
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const v8_inspector::V8StackTraceId& parent) {
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v8::SealHandleScope seal_handle_scope(isolate());
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inspector_->externalAsyncTaskStarted(parent);
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}
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void IsolateData::ExternalAsyncTaskFinished(
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const v8_inspector::V8StackTraceId& parent) {
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v8::SealHandleScope seal_handle_scope(isolate());
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inspector_->externalAsyncTaskFinished(parent);
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}
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void IsolateData::AddInspectedObject(int session_id,
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v8::Local<v8::Value> object) {
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v8::SealHandleScope seal_handle_scope(isolate());
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auto it = sessions_.find(session_id);
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if (it == sessions_.end()) return;
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std::unique_ptr<Inspectable> inspectable(
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new Inspectable(isolate_.get(), object));
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it->second->addInspectedObject(std::move(inspectable));
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}
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void IsolateData::SetMaxAsyncTaskStacksForTest(int limit) {
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v8::SealHandleScope seal_handle_scope(isolate());
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v8_inspector::SetMaxAsyncTaskStacksForTest(inspector_.get(), limit);
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}
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void IsolateData::DumpAsyncTaskStacksStateForTest() {
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v8::SealHandleScope seal_handle_scope(isolate());
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v8_inspector::DumpAsyncTaskStacksStateForTest(inspector_.get());
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}
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// static
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int IsolateData::HandleMessage(v8::Local<v8::Message> message,
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v8::Local<v8::Value> exception) {
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v8::Isolate* isolate = message->GetIsolate();
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v8::Local<v8::Context> context = isolate->GetEnteredOrMicrotaskContext();
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if (context.IsEmpty()) return 0;
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v8_inspector::V8Inspector* inspector =
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IsolateData::FromContext(context)->inspector_.get();
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v8::Local<v8::StackTrace> stack = message->GetStackTrace();
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int script_id =
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static_cast<int>(message->GetScriptOrigin().ScriptID()->Value());
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if (!stack.IsEmpty() && stack->GetFrameCount() > 0) {
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int top_script_id = stack->GetFrame(isolate, 0)->GetScriptId();
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if (top_script_id == script_id) script_id = 0;
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}
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int line_number = message->GetLineNumber(context).FromMaybe(0);
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int column_number = 0;
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if (message->GetStartColumn(context).IsJust())
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column_number = message->GetStartColumn(context).FromJust() + 1;
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v8_inspector::StringView detailed_message;
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v8::internal::Vector<uint16_t> message_text_string =
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ToVector(isolate, message->Get());
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v8_inspector::StringView message_text(message_text_string.begin(),
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message_text_string.length());
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v8::internal::Vector<uint16_t> url_string;
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if (message->GetScriptOrigin().ResourceName()->IsString()) {
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url_string = ToVector(
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isolate, message->GetScriptOrigin().ResourceName().As<v8::String>());
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}
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v8_inspector::StringView url(url_string.begin(), url_string.length());
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v8::SealHandleScope seal_handle_scope(isolate);
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return inspector->exceptionThrown(
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context, message_text, exception, detailed_message, url, line_number,
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column_number, inspector->createStackTrace(stack), script_id);
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}
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// static
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void IsolateData::MessageHandler(v8::Local<v8::Message> message,
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v8::Local<v8::Value> exception) {
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HandleMessage(message, exception);
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}
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// static
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void IsolateData::PromiseRejectHandler(v8::PromiseRejectMessage data) {
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v8::Isolate* isolate = data.GetPromise()->GetIsolate();
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v8::Local<v8::Context> context = isolate->GetEnteredOrMicrotaskContext();
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if (context.IsEmpty()) return;
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v8::Local<v8::Promise> promise = data.GetPromise();
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v8::Local<v8::Private> id_private = v8::Private::ForApi(
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isolate, v8::String::NewFromUtf8Literal(isolate, "id"));
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if (data.GetEvent() == v8::kPromiseHandlerAddedAfterReject) {
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v8::Local<v8::Value> id;
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if (!promise->GetPrivate(context, id_private).ToLocal(&id)) return;
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if (!id->IsInt32()) return;
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v8_inspector::V8Inspector* inspector =
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IsolateData::FromContext(context)->inspector_.get();
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v8::SealHandleScope seal_handle_scope(isolate);
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const char* reason_str = "Handler added to rejected promise";
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inspector->exceptionRevoked(
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context, id.As<v8::Int32>()->Value(),
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v8_inspector::StringView(reinterpret_cast<const uint8_t*>(reason_str),
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strlen(reason_str)));
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return;
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}
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v8::Local<v8::Value> exception = data.GetValue();
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int exception_id = HandleMessage(
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v8::Exception::CreateMessage(isolate, exception), exception);
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if (exception_id) {
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promise
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->SetPrivate(isolate->GetCurrentContext(), id_private,
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v8::Int32::New(isolate, exception_id))
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.ToChecked();
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}
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}
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void IsolateData::FireContextCreated(v8::Local<v8::Context> context,
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int context_group_id) {
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v8_inspector::V8ContextInfo info(context, context_group_id,
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v8_inspector::StringView());
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info.hasMemoryOnConsole = true;
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v8::SealHandleScope seal_handle_scope(isolate());
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inspector_->contextCreated(info);
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}
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void IsolateData::FireContextDestroyed(v8::Local<v8::Context> context) {
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v8::SealHandleScope seal_handle_scope(isolate());
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inspector_->contextDestroyed(context);
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}
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void IsolateData::FreeContext(v8::Local<v8::Context> context) {
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int context_group_id = GetContextGroupId(context);
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auto it = contexts_.find(context_group_id);
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if (it == contexts_.end()) return;
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contexts_.erase(it);
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}
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std::vector<int> IsolateData::GetSessionIds(int context_group_id) {
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std::vector<int> result;
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for (auto& it : sessions_) {
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if (context_group_by_session_[it.second.get()] == context_group_id)
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result.push_back(it.first);
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}
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return result;
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}
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bool IsolateData::formatAccessorsAsProperties(v8::Local<v8::Value> object) {
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v8::Local<v8::Context> context = isolate()->GetCurrentContext();
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v8::Local<v8::Private> shouldFormatAccessorsPrivate = v8::Private::ForApi(
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isolate(),
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v8::String::NewFromUtf8Literal(isolate(), "allowAccessorFormatting"));
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CHECK(object->IsObject());
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return object.As<v8::Object>()
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->HasPrivate(context, shouldFormatAccessorsPrivate)
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.FromMaybe(false);
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}
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bool IsolateData::isInspectableHeapObject(v8::Local<v8::Object> object) {
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v8::Local<v8::Context> context = isolate()->GetCurrentContext();
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v8::MicrotasksScope microtasks_scope(
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isolate(), v8::MicrotasksScope::kDoNotRunMicrotasks);
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return !object->HasPrivate(context, not_inspectable_private_.Get(isolate()))
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.FromMaybe(false);
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}
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v8::Local<v8::Context> IsolateData::ensureDefaultContextInGroup(
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int context_group_id) {
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return GetContext(context_group_id);
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}
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void IsolateData::SetCurrentTimeMS(double time) {
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current_time_ = time;
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current_time_set_ = true;
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}
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double IsolateData::currentTimeMS() {
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if (current_time_set_) return current_time_;
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return v8::internal::V8::GetCurrentPlatform()->CurrentClockTimeMillis();
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}
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void IsolateData::SetMemoryInfo(v8::Local<v8::Value> memory_info) {
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memory_info_.Reset(isolate_.get(), memory_info);
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}
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void IsolateData::SetLogConsoleApiMessageCalls(bool log) {
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log_console_api_message_calls_ = log;
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}
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void IsolateData::SetLogMaxAsyncCallStackDepthChanged(bool log) {
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log_max_async_call_stack_depth_changed_ = log;
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}
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v8::MaybeLocal<v8::Value> IsolateData::memoryInfo(v8::Isolate* isolate,
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v8::Local<v8::Context>) {
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if (memory_info_.IsEmpty()) return v8::MaybeLocal<v8::Value>();
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return memory_info_.Get(isolate);
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}
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void IsolateData::runMessageLoopOnPause(int) {
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v8::SealHandleScope seal_handle_scope(isolate());
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task_runner_->RunMessageLoop(true);
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}
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void IsolateData::quitMessageLoopOnPause() {
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v8::SealHandleScope seal_handle_scope(isolate());
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task_runner_->QuitMessageLoop();
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}
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void IsolateData::consoleAPIMessage(int contextGroupId,
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v8::Isolate::MessageErrorLevel level,
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const v8_inspector::StringView& message,
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const v8_inspector::StringView& url,
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unsigned lineNumber, unsigned columnNumber,
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v8_inspector::V8StackTrace* stack) {
|
|
if (!log_console_api_message_calls_) return;
|
|
Print(isolate_.get(), message);
|
|
fprintf(stdout, " (");
|
|
Print(isolate_.get(), url);
|
|
fprintf(stdout, ":%d:%d)", lineNumber, columnNumber);
|
|
Print(isolate_.get(), stack->toString()->string());
|
|
fprintf(stdout, "\n");
|
|
}
|
|
|
|
void IsolateData::maxAsyncCallStackDepthChanged(int depth) {
|
|
if (!log_max_async_call_stack_depth_changed_) return;
|
|
fprintf(stdout, "maxAsyncCallStackDepthChanged: %d\n", depth);
|
|
}
|
|
|
|
void IsolateData::SetResourceNamePrefix(v8::Local<v8::String> prefix) {
|
|
resource_name_prefix_.Reset(isolate(), prefix);
|
|
}
|
|
|
|
namespace {
|
|
class StringBufferImpl : public v8_inspector::StringBuffer {
|
|
public:
|
|
StringBufferImpl(v8::Isolate* isolate, v8::Local<v8::String> string)
|
|
: data_(ToVector(isolate, string)) {}
|
|
|
|
v8_inspector::StringView string() const override {
|
|
return v8_inspector::StringView(data_.begin(), data_.length());
|
|
}
|
|
|
|
private:
|
|
v8::internal::Vector<uint16_t> data_;
|
|
};
|
|
} // anonymous namespace
|
|
|
|
std::unique_ptr<v8_inspector::StringBuffer> IsolateData::resourceNameToUrl(
|
|
const v8_inspector::StringView& resourceName) {
|
|
if (resource_name_prefix_.IsEmpty()) return nullptr;
|
|
v8::HandleScope handle_scope(isolate());
|
|
v8::Local<v8::String> name = ToString(isolate(), resourceName);
|
|
v8::Local<v8::String> prefix = resource_name_prefix_.Get(isolate());
|
|
v8::Local<v8::String> url = v8::String::Concat(isolate(), prefix, name);
|
|
return std::unique_ptr<StringBufferImpl>(
|
|
new StringBufferImpl(isolate(), url));
|
|
}
|