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#include "myobject.h"
#include "../common.h"
size_t finalize_count = 0;
MyObject::MyObject() : env_(nullptr), wrapper_(nullptr) {}
MyObject::~MyObject() {
finalize_count++;
napi_delete_reference(env_, wrapper_);
}
void MyObject::Destructor(
napi_env env, void* nativeObject, void* /*finalize_hint*/) {
MyObject* obj = static_cast<MyObject*>(nativeObject);
delete obj;
}
napi_ref MyObject::constructor;
napi_status MyObject::Init(napi_env env) {
napi_status status;
napi_value cons;
status = napi_define_class(
env, "MyObject", -1, New, nullptr, 0, nullptr, &cons);
if (status != napi_ok) return status;
status = napi_create_reference(env, cons, 1, &constructor);
if (status != napi_ok) return status;
return napi_ok;
}
napi_value MyObject::New(napi_env env, napi_callback_info info) {
size_t argc = 1;
napi_value args[1];
napi_value _this;
NAPI_CALL(env, napi_get_cb_info(env, info, &argc, args, &_this, nullptr));
MyObject* obj = new MyObject();
napi_valuetype valuetype;
NAPI_CALL(env, napi_typeof(env, args[0], &valuetype));
if (valuetype == napi_undefined) {
obj->val_ = 0;
} else {
NAPI_CALL(env, napi_get_value_double(env, args[0], &obj->val_));
}
obj->env_ = env;
// The below call to napi_wrap() must request a reference to the wrapped
// object via the out-parameter, because this ensures that we test the code
// path that deals with a reference that is destroyed from its own finalizer.
NAPI_CALL(env, napi_wrap(env,
_this,
obj,
MyObject::Destructor,
nullptr, // finalize_hint
&obj->wrapper_));
return _this;
}
napi_status MyObject::NewInstance(napi_env env,
napi_value arg,
napi_value* instance) {
napi_status status;
const int argc = 1;
napi_value argv[argc] = {arg};
napi_value cons;
status = napi_get_reference_value(env, constructor, &cons);
if (status != napi_ok) return status;
status = napi_new_instance(env, cons, argc, argv, instance);
if (status != napi_ok) return status;
return napi_ok;
}
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