Function napi_wrap

Dependencies/napi/source/js_native_api_chakra.cc:1639–1674

}

napi_status napi_wrap(napi_env env,
                      napi_value js_object,
                      void* native_object,
                      napi_finalize finalize_cb,
                      void* finalize_hint,
                      napi_ref* result) {
  CHECK_ENV(env);
  CHECK_ARG(env, js_object);

  JsValueRef value = reinterpret_cast<JsValueRef>(js_object);

  JsValueRef wrapper = JS_INVALID_REFERENCE;
  CHECK_NAPI(FindWrapper(env, value, &wrapper));
  RETURN_STATUS_IF_FALSE(env, wrapper == JS_INVALID_REFERENCE, napi_invalid_arg);

  ExternalData* externalData = new ExternalData(
    env, native_object, finalize_cb, finalize_hint);
  if (externalData == nullptr) return napi_set_last_error(env, napi_generic_failure);

  // Create an external object that will hold the external data pointer.
  JsValueRef external = JS_INVALID_REFERENCE;
  CHECK_JSRT(env, JsCreateExternalObject(
    externalData, ExternalData::Finalize, &external));

  // Insert the external object into the value's prototype chain.
  JsValueRef valuePrototype = JS_INVALID_REFERENCE;
  CHECK_JSRT(env, JsGetPrototype(value, &valuePrototype));
  CHECK_JSRT(env, JsSetPrototype(external, valuePrototype));
  CHECK_JSRT(env, JsSetPrototype(value, external));

  if (result != nullptr) {
    CHECK_NAPI(napi_create_reference(env, js_object, 0, result));
  }

  return napi_ok;
}

napi_status napi_unwrap(napi_env env, napi_value js_object, void** result) {
  CHECK_ENV(env);