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 "jerryscript-ext/handler.h"
17 #include "jerryscript_headers.h"
18 #include "native_engine/native_value.h"
19 #include "utils/log.h"
20
21 struct jerry_external_context {
22 void* value = nullptr;
23 jerry_finalizer_t callback = nullptr;
24 void* hint = nullptr;
25 };
26
27 namespace {
__anonc058f7ef0202() 28 static jerry_object_native_info_t g_objectNativeInfo = { .free_cb = [](void* nativePointer) {
29 auto externalCtx = (jerry_external_context*)nativePointer;
30 if (externalCtx != nullptr) {
31 externalCtx->callback(externalCtx->value, externalCtx->hint);
32 delete externalCtx;
33 }
34 } };
35 } // namespace
36
jerry_add_external()37 bool jerry_add_external()
38 {
39 auto callback = [](const jerry_value_t function, const jerry_value_t thisVal, const jerry_value_t args[],
40 const jerry_length_t argc) -> jerry_value_t { return jerry_create_boolean(true); };
41
42 auto constructor = jerry_create_external_function(callback);
43 auto prototype = jerry_create_object();
44
45 jerry_value_t propName = jerry_create_string_from_utf8((const jerry_char_t*)"prototype");
46 jerry_value_t resultVal = jerry_set_property(constructor, propName, prototype);
47 jerry_release_value(propName);
48
49 if (!jerry_value_to_boolean(resultVal)) {
50 HILOG_ERROR("jerry_add_external failed");
51 return false;
52 }
53
54 jerry_value_t global = jerry_get_global_object();
55 jerryx_set_property_str(global, "External", constructor);
56 jerry_release_value(global);
57 return true;
58 }
59
jerry_create_external(void * value,jerry_finalizer_t finalizer,void * hint)60 jerry_value_t jerry_create_external(void* value, jerry_finalizer_t finalizer, void* hint)
61 {
62 auto externalCtx = new jerry_external_context;
63 if (externalCtx) {
64 externalCtx->value = value;
65 externalCtx->callback = finalizer;
66 externalCtx->hint = hint;
67 }
68 jerry_value_t global = jerry_get_global_object();
69 jerry_value_t external = jerryx_get_property_str(global, "External");
70 jerry_value_t object = jerry_create_undefined();
71
72 if (!jerry_value_is_undefined(external)) {
73 object = jerry_construct_object(external, nullptr, 0);
74 jerry_set_object_native_pointer(object, (void*)externalCtx, &g_objectNativeInfo);
75 }
76
77 jerry_release_value(external);
78 jerry_release_value(global);
79
80 return object;
81 }
82
jerry_value_is_external(const jerry_value_t object)83 bool jerry_value_is_external(const jerry_value_t object)
84 {
85 jerry_value_t global = jerry_get_global_object();
86 jerry_value_t external = jerryx_get_property_str(global, "External");
87 jerry_value_t op = jerry_create_boolean(false);
88
89 if (!jerry_value_is_undefined(external)) {
90 op = jerry_binary_operation(JERRY_BIN_OP_INSTANCEOF, object, external);
91 }
92
93 jerry_release_value(external);
94 jerry_release_value(global);
95 return jerry_get_boolean_value(op);
96 }
97
jerry_value_get_external(const jerry_value_t object)98 void* jerry_value_get_external(const jerry_value_t object)
99 {
100 jerry_external_context* externalCtx = nullptr;
101
102 jerry_get_object_native_pointer(object, (void**)&externalCtx, &g_objectNativeInfo);
103 if (externalCtx != nullptr) {
104 return externalCtx->value;
105 } else {
106 return nullptr;
107 }
108 }
109
jerry_freeze(jerry_value_t value)110 void jerry_freeze(jerry_value_t value)
111 {
112 const jerry_char_t funcResource[] = "unknown";
113 const jerry_char_t funcArgList[] = "v1 ";
114 const jerry_char_t funcSrc[] = " Object.freeze( v1 ) ";
115
116 jerry_value_t funcVal = jerry_parse_function(funcResource, sizeof(funcResource) - 1, funcArgList,
117 sizeof(funcArgList) - 1, funcSrc, sizeof(funcSrc) - 1, JERRY_PARSE_NO_OPTS);
118
119 jerry_value_t funcArgs[1] = { value };
120
121 jerry_value_t valRet = jerry_call_function(funcVal, funcArgs[0], funcArgs, 1);
122
123 jerry_release_value(valRet);
124 jerry_release_value(funcVal);
125 }
126
jerry_seal(jerry_value_t value)127 void jerry_seal(jerry_value_t value)
128 {
129 const jerry_char_t funcResource[] = "unknown";
130 const jerry_char_t funcArgList[] = "v1 ";
131 const jerry_char_t funcSrc[] = " Object.seal( v1 ) ";
132
133 jerry_value_t funcVal = jerry_parse_function(funcResource, sizeof(funcResource) - 1, funcArgList,
134 sizeof(funcArgList) - 1, funcSrc, sizeof(funcSrc) - 1, JERRY_PARSE_NO_OPTS);
135
136 jerry_value_t funcArgs[1] = { value };
137
138 jerry_value_t valRet = jerry_call_function(funcVal, funcArgs[0], funcArgs, 1);
139
140 jerry_release_value(valRet);
141 jerry_release_value(funcVal);
142 }
143
jerry_strict_date(double time)144 jerry_value_t jerry_strict_date(double time)
145 {
146 const jerry_char_t funcResource[] = "unknown";
147 const jerry_char_t funcArgList[] = "v1 ";
148 const jerry_char_t funcSrc[] = " return new Date(v1) ";
149
150 jerry_value_t funcVal = jerry_parse_function(funcResource, sizeof(funcResource) - 1, funcArgList,
151 sizeof(funcArgList) - 1, funcSrc, sizeof(funcSrc) - 1, JERRY_PARSE_NO_OPTS);
152
153 jerry_value_t value = jerry_create_number(time);
154 jerry_value_t funcArgs[1] = { value };
155
156 jerry_value_t valRet = jerry_call_function(funcVal, funcArgs[0], funcArgs, 1);
157 jerry_release_value(funcVal);
158 return valRet;
159 }
160
jerry_get_date(jerry_value_t value)161 double jerry_get_date(jerry_value_t value)
162 {
163 const jerry_char_t funcResource[] = "unknown";
164 const jerry_char_t funcArgList[] = "v1 ";
165 const jerry_char_t funcSrc[] = " return v1.getTime() ";
166
167 jerry_value_t funcVal = jerry_parse_function(funcResource, sizeof(funcResource) - 1, funcArgList,
168 sizeof(funcArgList) - 1, funcSrc, sizeof(funcSrc) - 1, JERRY_PARSE_NO_OPTS);
169
170 jerry_value_t funcArgs[1] = { value };
171
172 jerry_value_t valRet = jerry_call_function(funcVal, funcArgs[0], funcArgs, 1);
173
174 double retTime = jerry_get_number_value(valRet);
175
176 jerry_release_value(valRet);
177 jerry_release_value(funcVal);
178
179 return retTime;
180 }
181
jerry_is_date(jerry_value_t value)182 bool jerry_is_date(jerry_value_t value)
183 {
184 jerry_value_t global = jerry_get_global_object();
185 jerry_value_t date = jerryx_get_property_str(global, "Date");
186 jerry_value_t result = jerry_binary_operation(JERRY_BIN_OP_INSTANCEOF, value, date);
187
188 bool retVal = jerry_get_boolean_value(result);
189
190 jerry_release_value(result);
191 jerry_release_value(date);
192 jerry_release_value(global);
193
194 return retVal;
195 }
196