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1 // Copyright 2016 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 //#include "Values.h" | |
6 | |
7 {% for namespace in config.protocol.namespace %} | |
8 namespace {{namespace}} { | |
9 {% endfor %} | |
10 | |
11 namespace { | |
12 | |
13 const char* const nullValueString = "null"; | |
14 const char* const trueValueString = "true"; | |
15 const char* const falseValueString = "false"; | |
16 | |
17 inline bool escapeChar(uint16_t c, StringBuilder* dst) | |
18 { | |
19 switch (c) { | |
20 case '\b': dst->append("\\b"); break; | |
21 case '\f': dst->append("\\f"); break; | |
22 case '\n': dst->append("\\n"); break; | |
23 case '\r': dst->append("\\r"); break; | |
24 case '\t': dst->append("\\t"); break; | |
25 case '\\': dst->append("\\\\"); break; | |
26 case '"': dst->append("\\\""); break; | |
27 default: | |
28 return false; | |
29 } | |
30 return true; | |
31 } | |
32 | |
33 const char hexDigits[17] = "0123456789ABCDEF"; | |
34 | |
35 void appendUnsignedAsHex(uint16_t number, StringBuilder* dst) | |
36 { | |
37 dst->append("\\u"); | |
38 for (size_t i = 0; i < 4; ++i) { | |
39 uint16_t c = hexDigits[(number & 0xF000) >> 12]; | |
40 dst->append(c); | |
41 number <<= 4; | |
42 } | |
43 } | |
44 | |
45 void escapeStringForJSON(const String& str, StringBuilder* dst) | |
46 { | |
47 for (unsigned i = 0; i < str.length(); ++i) { | |
48 uint16_t c = str[i]; | |
49 if (!escapeChar(c, dst)) { | |
50 if (c < 32 || c > 126 || c == '<' || c == '>') { | |
51 // 1. Escaping <, > to prevent script execution. | |
52 // 2. Technically, we could also pass through c > 126 as UTF8, b
ut this | |
53 // is also optional. It would also be a pain to implement her
e. | |
54 appendUnsignedAsHex(c, dst); | |
55 } else { | |
56 dst->append(c); | |
57 } | |
58 } | |
59 } | |
60 } | |
61 | |
62 void doubleQuoteStringForJSON(const String& str, StringBuilder* dst) | |
63 { | |
64 dst->append('"'); | |
65 escapeStringForJSON(str, dst); | |
66 dst->append('"'); | |
67 } | |
68 | |
69 } // anonymous namespace | |
70 | |
71 bool Value::asBoolean(bool*) const | |
72 { | |
73 return false; | |
74 } | |
75 | |
76 bool Value::asDouble(double*) const | |
77 { | |
78 return false; | |
79 } | |
80 | |
81 bool Value::asInteger(int*) const | |
82 { | |
83 return false; | |
84 } | |
85 | |
86 bool Value::asString(String*) const | |
87 { | |
88 return false; | |
89 } | |
90 | |
91 bool Value::asSerialized(String*) const | |
92 { | |
93 return false; | |
94 } | |
95 | |
96 String Value::toJSONString() const | |
97 { | |
98 StringBuilder result; | |
99 StringUtil::builderReserve(result, 512); | |
100 writeJSON(&result); | |
101 return result.toString(); | |
102 } | |
103 | |
104 void Value::writeJSON(StringBuilder* output) const | |
105 { | |
106 DCHECK(m_type == TypeNull); | |
107 output->append(nullValueString, 4); | |
108 } | |
109 | |
110 std::unique_ptr<Value> Value::clone() const | |
111 { | |
112 return Value::null(); | |
113 } | |
114 | |
115 bool FundamentalValue::asBoolean(bool* output) const | |
116 { | |
117 if (type() != TypeBoolean) | |
118 return false; | |
119 *output = m_boolValue; | |
120 return true; | |
121 } | |
122 | |
123 bool FundamentalValue::asDouble(double* output) const | |
124 { | |
125 if (type() == TypeDouble) { | |
126 *output = m_doubleValue; | |
127 return true; | |
128 } | |
129 if (type() == TypeInteger) { | |
130 *output = m_integerValue; | |
131 return true; | |
132 } | |
133 return false; | |
134 } | |
135 | |
136 bool FundamentalValue::asInteger(int* output) const | |
137 { | |
138 if (type() != TypeInteger) | |
139 return false; | |
140 *output = m_integerValue; | |
141 return true; | |
142 } | |
143 | |
144 void FundamentalValue::writeJSON(StringBuilder* output) const | |
145 { | |
146 DCHECK(type() == TypeBoolean || type() == TypeInteger || type() == TypeDoubl
e); | |
147 if (type() == TypeBoolean) { | |
148 if (m_boolValue) | |
149 output->append(trueValueString, 4); | |
150 else | |
151 output->append(falseValueString, 5); | |
152 } else if (type() == TypeDouble) { | |
153 if (!std::isfinite(m_doubleValue)) { | |
154 output->append(nullValueString, 4); | |
155 return; | |
156 } | |
157 output->append(StringUtil::fromDouble(m_doubleValue)); | |
158 } else if (type() == TypeInteger) { | |
159 output->append(StringUtil::fromInteger(m_integerValue)); | |
160 } | |
161 } | |
162 | |
163 std::unique_ptr<Value> FundamentalValue::clone() const | |
164 { | |
165 switch (type()) { | |
166 case TypeDouble: return FundamentalValue::create(m_doubleValue); | |
167 case TypeInteger: return FundamentalValue::create(m_integerValue); | |
168 case TypeBoolean: return FundamentalValue::create(m_boolValue); | |
169 default: | |
170 NOTREACHED(); | |
171 } | |
172 return nullptr; | |
173 } | |
174 | |
175 bool StringValue::asString(String* output) const | |
176 { | |
177 *output = m_stringValue; | |
178 return true; | |
179 } | |
180 | |
181 void StringValue::writeJSON(StringBuilder* output) const | |
182 { | |
183 DCHECK(type() == TypeString); | |
184 doubleQuoteStringForJSON(m_stringValue, output); | |
185 } | |
186 | |
187 std::unique_ptr<Value> StringValue::clone() const | |
188 { | |
189 return StringValue::create(m_stringValue); | |
190 } | |
191 | |
192 bool SerializedValue::asSerialized(String* output) const | |
193 { | |
194 *output = m_serializedValue; | |
195 return true; | |
196 } | |
197 | |
198 void SerializedValue::writeJSON(StringBuilder* output) const | |
199 { | |
200 DCHECK(type() == TypeSerialized); | |
201 output->append(m_serializedValue); | |
202 } | |
203 | |
204 std::unique_ptr<Value> SerializedValue::clone() const | |
205 { | |
206 return SerializedValue::create(m_serializedValue); | |
207 } | |
208 | |
209 DictionaryValue::~DictionaryValue() | |
210 { | |
211 } | |
212 | |
213 void DictionaryValue::setBoolean(const String& name, bool value) | |
214 { | |
215 setValue(name, FundamentalValue::create(value)); | |
216 } | |
217 | |
218 void DictionaryValue::setInteger(const String& name, int value) | |
219 { | |
220 setValue(name, FundamentalValue::create(value)); | |
221 } | |
222 | |
223 void DictionaryValue::setDouble(const String& name, double value) | |
224 { | |
225 setValue(name, FundamentalValue::create(value)); | |
226 } | |
227 | |
228 void DictionaryValue::setString(const String& name, const String& value) | |
229 { | |
230 setValue(name, StringValue::create(value)); | |
231 } | |
232 | |
233 void DictionaryValue::setValue(const String& name, std::unique_ptr<Value> value) | |
234 { | |
235 set(name, value); | |
236 } | |
237 | |
238 void DictionaryValue::setObject(const String& name, std::unique_ptr<DictionaryVa
lue> value) | |
239 { | |
240 set(name, value); | |
241 } | |
242 | |
243 void DictionaryValue::setArray(const String& name, std::unique_ptr<ListValue> va
lue) | |
244 { | |
245 set(name, value); | |
246 } | |
247 | |
248 bool DictionaryValue::getBoolean(const String& name, bool* output) const | |
249 { | |
250 protocol::Value* value = get(name); | |
251 if (!value) | |
252 return false; | |
253 return value->asBoolean(output); | |
254 } | |
255 | |
256 bool DictionaryValue::getInteger(const String& name, int* output) const | |
257 { | |
258 Value* value = get(name); | |
259 if (!value) | |
260 return false; | |
261 return value->asInteger(output); | |
262 } | |
263 | |
264 bool DictionaryValue::getDouble(const String& name, double* output) const | |
265 { | |
266 Value* value = get(name); | |
267 if (!value) | |
268 return false; | |
269 return value->asDouble(output); | |
270 } | |
271 | |
272 bool DictionaryValue::getString(const String& name, String* output) const | |
273 { | |
274 protocol::Value* value = get(name); | |
275 if (!value) | |
276 return false; | |
277 return value->asString(output); | |
278 } | |
279 | |
280 DictionaryValue* DictionaryValue::getObject(const String& name) const | |
281 { | |
282 return DictionaryValue::cast(get(name)); | |
283 } | |
284 | |
285 protocol::ListValue* DictionaryValue::getArray(const String& name) const | |
286 { | |
287 return ListValue::cast(get(name)); | |
288 } | |
289 | |
290 protocol::Value* DictionaryValue::get(const String& name) const | |
291 { | |
292 Dictionary::const_iterator it = m_data.find(name); | |
293 if (it == m_data.end()) | |
294 return nullptr; | |
295 return it->second.get(); | |
296 } | |
297 | |
298 DictionaryValue::Entry DictionaryValue::at(size_t index) const | |
299 { | |
300 const String key = m_order[index]; | |
301 return std::make_pair(key, m_data.find(key)->second.get()); | |
302 } | |
303 | |
304 bool DictionaryValue::booleanProperty(const String& name, bool defaultValue) con
st | |
305 { | |
306 bool result = defaultValue; | |
307 getBoolean(name, &result); | |
308 return result; | |
309 } | |
310 | |
311 int DictionaryValue::integerProperty(const String& name, int defaultValue) const | |
312 { | |
313 int result = defaultValue; | |
314 getInteger(name, &result); | |
315 return result; | |
316 } | |
317 | |
318 double DictionaryValue::doubleProperty(const String& name, double defaultValue)
const | |
319 { | |
320 double result = defaultValue; | |
321 getDouble(name, &result); | |
322 return result; | |
323 } | |
324 | |
325 void DictionaryValue::remove(const String& name) | |
326 { | |
327 m_data.erase(name); | |
328 m_order.erase(std::remove(m_order.begin(), m_order.end(), name), m_order.end
()); | |
329 } | |
330 | |
331 void DictionaryValue::writeJSON(StringBuilder* output) const | |
332 { | |
333 output->append('{'); | |
334 for (size_t i = 0; i < m_order.size(); ++i) { | |
335 Dictionary::const_iterator it = m_data.find(m_order[i]); | |
336 CHECK(it != m_data.end()); | |
337 if (i) | |
338 output->append(','); | |
339 doubleQuoteStringForJSON(it->first, output); | |
340 output->append(':'); | |
341 it->second->writeJSON(output); | |
342 } | |
343 output->append('}'); | |
344 } | |
345 | |
346 std::unique_ptr<Value> DictionaryValue::clone() const | |
347 { | |
348 std::unique_ptr<DictionaryValue> result = DictionaryValue::create(); | |
349 for (size_t i = 0; i < m_order.size(); ++i) { | |
350 String key = m_order[i]; | |
351 Dictionary::const_iterator value = m_data.find(key); | |
352 DCHECK(value != m_data.cend() && value->second); | |
353 result->setValue(key, value->second->clone()); | |
354 } | |
355 return std::move(result); | |
356 } | |
357 | |
358 DictionaryValue::DictionaryValue() | |
359 : Value(TypeObject) | |
360 { | |
361 } | |
362 | |
363 ListValue::~ListValue() | |
364 { | |
365 } | |
366 | |
367 void ListValue::writeJSON(StringBuilder* output) const | |
368 { | |
369 output->append('['); | |
370 bool first = true; | |
371 for (const std::unique_ptr<protocol::Value>& value : m_data) { | |
372 if (!first) | |
373 output->append(','); | |
374 value->writeJSON(output); | |
375 first = false; | |
376 } | |
377 output->append(']'); | |
378 } | |
379 | |
380 std::unique_ptr<Value> ListValue::clone() const | |
381 { | |
382 std::unique_ptr<ListValue> result = ListValue::create(); | |
383 for (const std::unique_ptr<protocol::Value>& value : m_data) | |
384 result->pushValue(value->clone()); | |
385 return std::move(result); | |
386 } | |
387 | |
388 ListValue::ListValue() | |
389 : Value(TypeArray) | |
390 { | |
391 } | |
392 | |
393 void ListValue::pushValue(std::unique_ptr<protocol::Value> value) | |
394 { | |
395 DCHECK(value); | |
396 m_data.push_back(std::move(value)); | |
397 } | |
398 | |
399 protocol::Value* ListValue::at(size_t index) | |
400 { | |
401 DCHECK_LT(index, m_data.size()); | |
402 return m_data[index].get(); | |
403 } | |
404 | |
405 {% for namespace in config.protocol.namespace %} | |
406 } // namespace {{namespace}} | |
407 {% endfor %} | |
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