nan/test/cpp/makecallback.cpp at main · nodejs/nan · GitHub

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/*********************************************************************

* NAN - Native Abstractions for Node.js

* 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)

nan/test/cpp/makecallback.cpp at main · nodejs/nan · GitHub

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nan/test/cpp/makecallback.cpp at main · nodejs/nan · GitHub

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