1 /* 2 * Copyright (c) 2025 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef AUTO_NAPI_REF_H 17 #define AUTO_NAPI_REF_H 18 19 #include "napi/native_api.h" 20 #include "napi/native_common.h" 21 #include "napi/native_node_api.h" 22 23 struct AutoNapiRef { AutoNapiRefAutoNapiRef24 AutoNapiRef() {} AutoNapiRefAutoNapiRef25 AutoNapiRef(napi_env env, napi_value value) 26 { 27 CreateReference(env, value); 28 } 29 AutoNapiRef(const AutoNapiRef&) = delete; 30 AutoNapiRef& operator=(const AutoNapiRef&) = delete; 31 CreateReferenceAutoNapiRef32 void CreateReference(napi_env env, napi_value value) { 33 Reset(); 34 env_ = env; 35 if (env) { 36 napi_create_reference(env, value, 1, &ref_); 37 } 38 } 39 ~AutoNapiRefAutoNapiRef40 ~AutoNapiRef() 41 { 42 if (env_ && ref_) { 43 napi_delete_reference(env_, ref_); 44 } 45 } 46 GetRefValueAutoNapiRef47 napi_value GetRefValue() 48 { 49 napi_value value = nullptr; 50 if (env_ && ref_) { 51 napi_get_reference_value(env_, ref_, &value); 52 } 53 return value; 54 } 55 ResetAutoNapiRef56 void Reset() 57 { 58 if (env_ && ref_) { 59 napi_delete_reference(env_, ref_); 60 } 61 ref_ = nullptr; 62 env_ = nullptr; 63 } 64 65 napi_ref ref_ = nullptr; 66 napi_env env_ = nullptr; 67 }; 68 69 #endif // AUTO_NAPI_REF_H 70