internalmakecallback.cc

MaybeLocal<Value> InternalMakeCallback(Environment* env,
                                       Local<Object> recv,
                                       const Local<Function> callback,
                                       int argc,
                                       Local<Value> argv[],
                                       async_context asyncContext) {                                  
  // ...redacted...

  Local<Function> domain_cb = env->domain_callback();
  MaybeLocal<Value> ret;
  if (asyncContext.async_id != 0 || domain_cb.IsEmpty() || recv.IsEmpty()) {
    ret = callback->Call(env->context(), recv, argc, argv); 
  } else {
    // ...redacted...
  }

  // ...redacted ...

  scope.Close(); 
  if (scope.Failed()) {
    return Undefined(env->isolate());
  }
  return ret;
}