mojo::PendingReceiver<node::mojom::NodeService> receiver)

: node_bindings_(

NodeBindings::Create(NodeBindings::BrowserEnvironment::kUtility)),

electron_bindings_(

std::make_unique<ElectronBindings>(node_bindings_->uv_loop())) {

if (receiver.is_valid())

receiver_.Bind(std::move(receiver));

if (NodeBindings::IsInitialized())

return;

ParentPort::GetInstance()->Initialize(std::move(params->port));

js_env_ = std::make_unique<JavascriptEnvironment>(node_bindings_->uv_loop());

v8::HandleScope scope(js_env_->isolate());

node_bindings_->Initialize();

// Append program path for process.argv0

auto program = base::CommandLine::ForCurrentProcess()->GetProgram();

#if defined(OS_WIN)

params->args.insert(params->args.begin(), base::WideToUTF8(program.value()));

#else

params->args.insert(params->args.begin(), program.value());

#endif

// Create the global environment.

node::Environment* env = node_bindings_->CreateEnvironment(

js_env_->context(), js_env_->platform(), params->args, params->exec_args);

node_env_ = std::make_unique<NodeEnvironment>(env);

node::SetProcessExitHandler(env,

[this](node::Environment* env, int exit_code) {

// Destroy node platform.

env->set_trace_sync_io(false);

js_env_->DestroyMicrotasksRunner();

node::Stop(env);

node_env_stopped_ = true;

receiver_.ResetWithReason(exit_code, "");

});

env->set_trace_sync_io(env->options()->trace_sync_io);

// Add Electron extended APIs.

electron_bindings_->BindTo(env->isolate(), env->process_object());

// Add entry script to process object.

gin_helper::Dictionary process(env->isolate(), env->process_object());

process.SetHidden("_serviceStartupScript", params->script);

// Setup microtask runner.

js_env_->CreateMicrotasksRunner();

// Wrap the uv loop with global env.

node_bindings_->set_uv_env(env);

// LoadEnvironment should be called after setting up

// JavaScriptEnvironment including the microtask runner

// since this call will start compilation and execution

// of the entry script. If there is an uncaught exception

// the exit handler set above will be triggered and it expects

// both Node Env and JavaScriptEnviroment are setup to perform

// a clean shutdown of this process.

node_bindings_->LoadEnvironment(env);

// Run entry script.

node_bindings_->PrepareEmbedThread();

node_bindings_->StartPolling();