Compiles against io.js v2.0

binding.gyp

{
  "targets": [{
    "target_name": "addon",
    "sources": [ "main.cc" ]
  }]
}

main.cc

#include <v8.h>
#include <node.h>

using namespace v8;


void RunMe(const FunctionCallbackInfo<Value>& args) {
  uint32_t l = args[0]->Uint32Value();
  Local<ArrayBuffer> ab = ArrayBuffer::New(args.GetIsolate(), l);
  Local<Uint8Array> u8 = Uint8Array::New(ab, 0, l);
  u8->SetPrototype(args[1]);
  args.GetReturnValue().Set(u8);
}


void init(Handle<Object> exports) {
  NODE_SET_METHOD(exports, "runMe", RunMe);
}

NODE_MODULE(addon, init)

run.js

'use strict';

const addon = require('./build/Release/addon');
const runMe = addon.runMe;
const Buffer = require('buffer').Buffer;
const bp = Buffer.prototype;

Buffer.__proto__ = Uint8Array;
Buffer.prototype.__proto__ = Uint8Array.prototype;

function Nuffer(n) {
  return runMe(n, bp);
}
Nuffer.__proto__ = Buffer;
Nuffer.prototype.__proto__ = Buffer.prototype;


/*
var n = new Nuffer(5);
console.log(n, n.length);
/* */


var t = process.hrtime();

for (var i = 0; i < 1e7; i++) {
  new Nuffer(1);
}


t = process.hrtime(t);
t = t[0] * 1e9 + t[1];

console.log((t / 1e7).toFixed(1) + ' ns/op');
/* */