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/*********************************************************************
* NAN - Native Abstractions for Node.js
*
* Copyright (c) 2018 NAN contributors
*
* MIT License <https://github.com/nodejs/nan/blob/master/LICENSE.md>
********************************************************************/
#include <nan.h>
using namespace Nan; // NOLINT(build/namespaces)
class MyObject : public node::ObjectWrap {
public:
static NAN_MODULE_INIT(Init);
private:
explicit MyObject(v8::Local<v8::Object> resource);
~MyObject();
AsyncResource async_resource;
static NAN_METHOD(New);
static NAN_METHOD(CallEmit);
static Persistent<v8::Function> constructor;
};
Persistent<v8::Function> MyObject::constructor;
MyObject::MyObject(v8::Local<v8::Object> resource)
: async_resource("nan:test:makecallback", resource) {
}
MyObject::~MyObject() {
}
NAN_MODULE_INIT(MyObject::Init) {
// Prepare constructor template
v8::Local<v8::FunctionTemplate> tpl = Nan::New<v8::FunctionTemplate>(New);
tpl->SetClassName(Nan::New<v8::String>("MyObject").ToLocalChecked());
tpl->InstanceTemplate()->SetInternalFieldCount(1);
SetPrototypeMethod(tpl, "call_emit", CallEmit);
v8::Local<v8::Function> function = GetFunction(tpl).ToLocalChecked();
constructor.Reset(function);
Set(target, Nan::New("MyObject").ToLocalChecked(), function);
}
NAN_METHOD(MyObject::New) {
if (info.IsConstructCall()) {
MyObject* obj = new MyObject(info.This());
obj->Wrap(info.This());
info.GetReturnValue().Set(info.This());
} else {
v8::Local<v8::Function> cons = Nan::New<v8::Function>(constructor);
info.GetReturnValue().Set(Nan::NewInstance(cons).ToLocalChecked());
}
}
NAN_METHOD(MyObject::CallEmit) {
v8::Local<v8::Value> argv[1] = {
Nan::New("event").ToLocalChecked(), // event name
};
MyObject* obj = node::ObjectWrap::Unwrap<MyObject>(info.This());
obj->async_resource.runInAsyncScope(info.This(), "emit", 1, argv);
info.GetReturnValue().SetUndefined();
}
NODE_MODULE(makecallback, MyObject::Init)
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