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 #include "n_func_arg.h"
17
18 #include <iostream>
19 #include <sstream>
20
21 #include "../log.h"
22 #include "../uni_error.h"
23
24 namespace OHOS {
25 namespace DistributedFS {
26 using namespace std;
27
NFuncArg(napi_env env,napi_callback_info info)28 NFuncArg::NFuncArg(napi_env env, napi_callback_info info) : env_(env), info_(info) {}
29
~NFuncArg()30 NFuncArg::~NFuncArg() {}
31
SetArgc(size_t argc)32 void NFuncArg::SetArgc(size_t argc)
33 {
34 argc_ = argc;
35 }
SetThisVar(napi_value thisVar)36 void NFuncArg::SetThisVar(napi_value thisVar)
37 {
38 thisVar_ = thisVar;
39 }
40
GetArgc(void) const41 size_t NFuncArg::GetArgc(void) const
42 {
43 return argc_;
44 }
45
GetThisVar(void) const46 napi_value NFuncArg::GetThisVar(void) const
47 {
48 return thisVar_;
49 }
50
GetArg(size_t argPos) const51 napi_value NFuncArg::GetArg(size_t argPos) const
52 {
53 return (argPos < GetArgc()) ? argv_[argPos] : nullptr;
54 }
55
operator [](size_t argPos) const56 napi_value NFuncArg::operator[](size_t argPos) const
57 {
58 return GetArg(argPos);
59 }
60
InitArgs(std::function<bool ()> argcChecker)61 bool NFuncArg::InitArgs(std::function<bool()> argcChecker)
62 {
63 SetArgc(0);
64 argv_.reset();
65
66 size_t argc;
67 napi_value thisVar;
68 napi_status status = napi_get_cb_info(env_, info_, &argc, nullptr, &thisVar, nullptr);
69 if (status != napi_ok) {
70 HILOGE("Cannot get num of func args for %{public}d", status);
71 return false;
72 }
73 if (argc) {
74 argv_ = make_unique<napi_value[]>(argc);
75 status = napi_get_cb_info(env_, info_, &argc, argv_.get(), &thisVar, nullptr);
76 if (status != napi_ok) {
77 HILOGE("Cannot get func args for %{public}d", status);
78 return false;
79 }
80 }
81 SetArgc(argc);
82 SetThisVar(thisVar);
83
84 return argcChecker();
85 }
86
InitArgs(size_t argc)87 bool NFuncArg::InitArgs(size_t argc)
88 {
89 return InitArgs([argc, this]() {
90 size_t realArgc = GetArgc();
91 if (argc != realArgc) {
92 HILOGE("Num of args recved eq %zu while expecting %{public}zu", realArgc, argc);
93 return false;
94 }
95 return true;
96 });
97 }
98
InitArgs(size_t minArgc,size_t maxArgc)99 bool NFuncArg::InitArgs(size_t minArgc, size_t maxArgc)
100 {
101 return InitArgs([minArgc, maxArgc, this]() {
102 size_t realArgc = GetArgc();
103 if (minArgc > realArgc || maxArgc < realArgc) {
104 HILOGE("Num of args recved eq %zu while expecting %{public}zu ~ %{public}zu", realArgc, minArgc, maxArgc);
105 return false;
106 }
107 return true;
108 });
109 }
110 } // namespace DistributedFS
111 } // namespace OHOS
112