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/*********************************************************************
* NAN - Native Abstractions for Node.js
*
* Copyright (c) 2016 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 ObjectWrap {
public:
static NAN_MODULE_INIT(Init) {
v8::Local<v8::FunctionTemplate> tpl = Nan::New<v8::FunctionTemplate>(New);
tpl->SetClassName(Nan::New("MyObject").ToLocalChecked());
tpl->InstanceTemplate()->SetInternalFieldCount(1);
SetPrototypeMethod(tpl, "getHandle", GetHandle);
SetPrototypeMethod(tpl, "getHandleConst", GetHandleConst);
SetPrototypeMethod(tpl, "getValue", GetValue);
constructor().Reset(Nan::GetFunction(tpl).ToLocalChecked());
Set(target, Nan::New("MyObject").ToLocalChecked(),
Nan::GetFunction(tpl).ToLocalChecked());
}
private:
explicit MyObject(double value = 0) : value_(value) {}
~MyObject() {}
static NAN_METHOD(New) {
if (info.IsConstructCall()) {
double value =
info[0]->IsUndefined() ? 0 : Nan::To<double>(info[0]).FromJust();
MyObject *obj = new MyObject(value);
obj->Wrap(info.This());
info.GetReturnValue().Set(info.This());
} else {
const int argc = 1;
v8::Local<v8::Value> argv[argc] = {info[0]};
v8::Local<v8::Function> cons = Nan::New(constructor());
info.GetReturnValue().Set(cons->NewInstance(argc, argv));
}
}
static NAN_METHOD(GetHandle) {
MyObject* obj = ObjectWrap::Unwrap<MyObject>(info.Holder());
info.GetReturnValue().Set(obj->handle());
}
static NAN_METHOD(GetHandleConst) {
MyObject const *obj = ObjectWrap::Unwrap<MyObject>(info.Holder());
info.GetReturnValue().Set(obj->handle());
}
static NAN_METHOD(GetValue) {
MyObject* obj = ObjectWrap::Unwrap<MyObject>(info.Holder());
info.GetReturnValue().Set(obj->value_);
}
static inline Persistent<v8::Function> & constructor() {
static Persistent<v8::Function> my_constructor;
return my_constructor;
}
double value_;
};
NODE_MODULE(objectwraphandle, MyObject::Init)
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