在不安装节点的情况下从Elixir代码调用JavaScript

defmodule MyNIF do
  use NIF

  def hello(name) do
    :erlang.nif_error(:nif_not_loaded)
  end
end

#include <v8.h>

extern "C" {
  ERL_NIF_TERM hello_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) {
    v8::Isolate* isolate = v8::Isolate::GetCurrent();
    v8::HandleScope handle_scope(isolate);

    v8::Local<v8::Context> context = v8::Context::New(isolate);
    v8::Context::Scope context_scope(context);

    v8::Local<v8::String> func_name = v8::String::NewFromUtf8(isolate, "sayHello");
    v8::Local<v8::Function> func = v8::Local<v8::Function>::Cast(context->Global()->Get(func_name));

    v8::Local<v8::Value> args[] = {v8::String::NewFromUtf8(isolate, "Elixir")};
    v8::Local<v8::Value> result = func->Call(context->Global(), 1, args);

    v8::String::Utf8Value utf8_result(isolate, result);
    return enif_make_string(env, *utf8_result);
  }
}

ERL_NIF_TERM hello_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) {
  return enif_raise_exception(env, enif_make_atom(env, "not_loaded"));
}

static ErlNifFunc nif_funcs[] = {
  {"hello_nif", 0, hello_nif}
};

ERL_NIF_INIT(Elixir.MyNIF, nif_funcs, NULL, NULL, NULL, NULL)

defmodule MyModule do
  def load_nif do
    :erlang.load_nif("path/to/my_nif", 0)
  end

  def call_javascript do
    :erlang.apply(:my_nif, :hello_nif, [])
  end
end