1 /* 2 * Copyright (c) 2021 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 #pragma once 17 18 #include <functional> 19 #include <map> 20 #include <memory> 21 #include <vector> 22 23 #include "n_val.h" 24 #include "uni_header.h" 25 26 namespace OHOS { 27 namespace DistributedFS { 28 enum NARG_CNT { 29 ZERO = 0, 30 ONE = 1, 31 TWO = 2, 32 THREE = 3, 33 FOUR = 4, 34 }; 35 36 enum NARG_POS { 37 FIRST = 0, 38 SECOND = 1, 39 THIRD = 2, 40 FOURTH = 3, 41 }; 42 43 class NFuncArg final { 44 public: 45 NFuncArg(napi_env env, napi_callback_info info); 46 virtual ~NFuncArg(); 47 48 bool InitArgs(size_t argc); 49 bool InitArgs(size_t minArgc, size_t maxArgc); 50 51 size_t GetArgc() const; 52 napi_value GetThisVar() const; 53 54 napi_value operator[](size_t idx) const; 55 napi_value GetArg(size_t argPos) const; 56 57 private: 58 napi_env env_ = nullptr; 59 napi_callback_info info_ = nullptr; 60 61 size_t argc_ = 0; 62 std::unique_ptr<napi_value[]> argv_ = { nullptr }; 63 napi_value thisVar_ = nullptr; 64 65 bool InitArgs(std::function<bool()> argcChecker); 66 67 void SetArgc(size_t argc); 68 void SetThisVar(napi_value thisVar); 69 }; 70 } // namespace DistributedFS 71 } // namespace OHOS