V8，从C++生成和抛出错误对象的正确方法是什么

#include <iostream>
#include <v8.h>

void ThrowError(const v8::FunctionCallbackInfo<v8::Value>& args) {
  v8::Isolate* isolate = args.GetIsolate();
  v8::Local<v8::String> message = v8::String::NewFromUtf8(isolate, "Custom error message");
  v8::Local<v8::Value> error = v8::Exception::Error(message);
  isolate->ThrowException(error);
}

int main() {
  v8::Isolate* isolate = v8::Isolate::GetCurrent();
  v8::HandleScope handle_scope(isolate);

  // 创建一个新的V8上下文
  v8::Local<v8::Context> context = v8::Context::New(isolate);

  // 进入上下文
  v8::Context::Scope context_scope(context);

  // 在上下文中注册一个函数，用于抛出错误
  v8::Local<v8::FunctionTemplate> func_template = v8::FunctionTemplate::New(isolate, ThrowError);
  v8::Local<v8::Function> func = func_template->GetFunction(context).ToLocalChecked();
  v8::Local<v8::String> func_name = v8::String::NewFromUtf8(isolate, "throwError");
  context->Global()->Set(context, func_name, func).FromJust();

  // 在上下文中执行JavaScript代码，调用刚注册的函数
  v8::Local<v8::String> script = v8::String::NewFromUtf8(isolate, "throwError()");
  v8::Local<v8::Script> compiled_script = v8::Script::Compile(context, script).ToLocalChecked();
  compiled_script->Run(context).ToLocalChecked();

  // 处理可能的异常
  if (isolate->IsExceptionPending()) {
    v8::Local<v8::Value> exception = isolate->GetCaughtException();
    v8::String::Utf8Value exception_str(isolate, exception);
    std::cout << "Caught exception: " << *exception_str << std::endl;
  }

  return 0;
}