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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 "platform/v8_inspector/V8StringUtil.h" | |
| 6 | |
| 7 #include "platform/inspector_protocol/InspectorProtocol.h" | |
| 8 #include "platform/v8_inspector/V8InspectorImpl.h" | |
| 9 #include "platform/v8_inspector/V8InspectorSessionImpl.h" | |
| 10 #include "platform/v8_inspector/V8Regex.h" | |
| 11 | |
| 12 namespace v8_inspector { | |
| 13 | |
| 14 namespace { | |
| 15 | |
| 16 String16 findMagicComment(const String16& content, const String16& name, bool mu
ltiline) | |
| 17 { | |
| 18 DCHECK(name.find("=") == String16::kNotFound); | |
| 19 unsigned length = content.length(); | |
| 20 unsigned nameLength = name.length(); | |
| 21 | |
| 22 size_t pos = length; | |
| 23 size_t equalSignPos = 0; | |
| 24 size_t closingCommentPos = 0; | |
| 25 while (true) { | |
| 26 pos = content.reverseFind(name, pos); | |
| 27 if (pos == String16::kNotFound) | |
| 28 return String16(); | |
| 29 | |
| 30 // Check for a /\/[\/*][@#][ \t]/ regexp (length of 4) before found name
. | |
| 31 if (pos < 4) | |
| 32 return String16(); | |
| 33 pos -= 4; | |
| 34 if (content[pos] != '/') | |
| 35 continue; | |
| 36 if ((content[pos + 1] != '/' || multiline) | |
| 37 && (content[pos + 1] != '*' || !multiline)) | |
| 38 continue; | |
| 39 if (content[pos + 2] != '#' && content[pos + 2] != '@') | |
| 40 continue; | |
| 41 if (content[pos + 3] != ' ' && content[pos + 3] != '\t') | |
| 42 continue; | |
| 43 equalSignPos = pos + 4 + nameLength; | |
| 44 if (equalSignPos < length && content[equalSignPos] != '=') | |
| 45 continue; | |
| 46 if (multiline) { | |
| 47 closingCommentPos = content.find("*/", equalSignPos + 1); | |
| 48 if (closingCommentPos == String16::kNotFound) | |
| 49 return String16(); | |
| 50 } | |
| 51 | |
| 52 break; | |
| 53 } | |
| 54 | |
| 55 DCHECK(equalSignPos); | |
| 56 DCHECK(!multiline || closingCommentPos); | |
| 57 size_t urlPos = equalSignPos + 1; | |
| 58 String16 match = multiline | |
| 59 ? content.substring(urlPos, closingCommentPos - urlPos) | |
| 60 : content.substring(urlPos); | |
| 61 | |
| 62 size_t newLine = match.find("\n"); | |
| 63 if (newLine != String16::kNotFound) | |
| 64 match = match.substring(0, newLine); | |
| 65 match = match.stripWhiteSpace(); | |
| 66 | |
| 67 for (unsigned i = 0; i < match.length(); ++i) { | |
| 68 UChar c = match[i]; | |
| 69 if (c == '"' || c == '\'' || c == ' ' || c == '\t') | |
| 70 return ""; | |
| 71 } | |
| 72 | |
| 73 return match; | |
| 74 } | |
| 75 | |
| 76 String16 createSearchRegexSource(const String16& text) | |
| 77 { | |
| 78 String16Builder result; | |
| 79 | |
| 80 for (unsigned i = 0; i < text.length(); i++) { | |
| 81 UChar c = text[i]; | |
| 82 if (c == '[' || c == ']' || c == '(' || c == ')' || c == '{' || c == '}' | |
| 83 || c == '+' || c == '-' || c == '*' || c == '.' || c == ',' || c ==
'?' | |
| 84 || c == '\\' || c == '^' || c == '$' || c == '|') { | |
| 85 result.append('\\'); | |
| 86 } | |
| 87 result.append(text[i]); | |
| 88 } | |
| 89 | |
| 90 return result.toString(); | |
| 91 } | |
| 92 | |
| 93 std::unique_ptr<std::vector<unsigned>> lineEndings(const String16& text) | |
| 94 { | |
| 95 std::unique_ptr<std::vector<unsigned>> result(new std::vector<unsigned>()); | |
| 96 | |
| 97 const String16 lineEndString = "\n"; | |
| 98 unsigned start = 0; | |
| 99 while (start < text.length()) { | |
| 100 size_t lineEnd = text.find(lineEndString, start); | |
| 101 if (lineEnd == String16::kNotFound) | |
| 102 break; | |
| 103 | |
| 104 result->push_back(static_cast<unsigned>(lineEnd)); | |
| 105 start = lineEnd + 1; | |
| 106 } | |
| 107 result->push_back(text.length()); | |
| 108 | |
| 109 return result; | |
| 110 } | |
| 111 | |
| 112 std::vector<std::pair<int, String16>> scriptRegexpMatchesByLines(const V8Regex&
regex, const String16& text) | |
| 113 { | |
| 114 std::vector<std::pair<int, String16>> result; | |
| 115 if (text.isEmpty()) | |
| 116 return result; | |
| 117 | |
| 118 std::unique_ptr<std::vector<unsigned>> endings(lineEndings(text)); | |
| 119 unsigned size = endings->size(); | |
| 120 unsigned start = 0; | |
| 121 for (unsigned lineNumber = 0; lineNumber < size; ++lineNumber) { | |
| 122 unsigned lineEnd = endings->at(lineNumber); | |
| 123 String16 line = text.substring(start, lineEnd - start); | |
| 124 if (line.length() && line[line.length() - 1] == '\r') | |
| 125 line = line.substring(0, line.length() - 1); | |
| 126 | |
| 127 int matchLength; | |
| 128 if (regex.match(line, 0, &matchLength) != -1) | |
| 129 result.push_back(std::pair<int, String16>(lineNumber, line)); | |
| 130 | |
| 131 start = lineEnd + 1; | |
| 132 } | |
| 133 return result; | |
| 134 } | |
| 135 | |
| 136 std::unique_ptr<protocol::Debugger::SearchMatch> buildObjectForSearchMatch(int l
ineNumber, const String16& lineContent) | |
| 137 { | |
| 138 return protocol::Debugger::SearchMatch::create() | |
| 139 .setLineNumber(lineNumber) | |
| 140 .setLineContent(lineContent) | |
| 141 .build(); | |
| 142 } | |
| 143 | |
| 144 std::unique_ptr<V8Regex> createSearchRegex(V8InspectorImpl* inspector, const Str
ing16& query, bool caseSensitive, bool isRegex) | |
| 145 { | |
| 146 String16 regexSource = isRegex ? query : createSearchRegexSource(query); | |
| 147 return wrapUnique(new V8Regex(inspector, regexSource, caseSensitive)); | |
| 148 } | |
| 149 | |
| 150 } // namespace | |
| 151 | |
| 152 v8::Local<v8::String> toV8String(v8::Isolate* isolate, const String16& string) | |
| 153 { | |
| 154 if (string.isEmpty()) | |
| 155 return v8::String::Empty(isolate); | |
| 156 return v8::String::NewFromTwoByte(isolate, reinterpret_cast<const uint16_t*>
(string.characters16()), v8::NewStringType::kNormal, string.length()).ToLocalChe
cked(); | |
| 157 } | |
| 158 | |
| 159 v8::Local<v8::String> toV8StringInternalized(v8::Isolate* isolate, const String1
6& string) | |
| 160 { | |
| 161 if (string.isEmpty()) | |
| 162 return v8::String::Empty(isolate); | |
| 163 return v8::String::NewFromTwoByte(isolate, reinterpret_cast<const uint16_t*>
(string.characters16()), v8::NewStringType::kInternalized, string.length()).ToLo
calChecked(); | |
| 164 } | |
| 165 | |
| 166 v8::Local<v8::String> toV8StringInternalized(v8::Isolate* isolate, const char* s
tr) | |
| 167 { | |
| 168 return v8::String::NewFromUtf8(isolate, str, v8::NewStringType::kInternalize
d).ToLocalChecked(); | |
| 169 } | |
| 170 | |
| 171 v8::Local<v8::String> toV8String(v8::Isolate* isolate, const StringView& string) | |
| 172 { | |
| 173 if (!string.length()) | |
| 174 return v8::String::Empty(isolate); | |
| 175 if (string.is8Bit()) | |
| 176 return v8::String::NewFromOneByte(isolate, reinterpret_cast<const uint8_
t*>(string.characters8()), v8::NewStringType::kNormal, string.length()).ToLocalC
hecked(); | |
| 177 return v8::String::NewFromTwoByte(isolate, reinterpret_cast<const uint16_t*>
(string.characters16()), v8::NewStringType::kNormal, string.length()).ToLocalChe
cked(); | |
| 178 } | |
| 179 | |
| 180 String16 toProtocolString(v8::Local<v8::String> value) | |
| 181 { | |
| 182 if (value.IsEmpty() || value->IsNull() || value->IsUndefined()) | |
| 183 return String16(); | |
| 184 std::unique_ptr<UChar[]> buffer(new UChar[value->Length()]); | |
| 185 value->Write(reinterpret_cast<uint16_t*>(buffer.get()), 0, value->Length()); | |
| 186 return String16(buffer.get(), value->Length()); | |
| 187 } | |
| 188 | |
| 189 String16 toProtocolStringWithTypeCheck(v8::Local<v8::Value> value) | |
| 190 { | |
| 191 if (value.IsEmpty() || !value->IsString()) | |
| 192 return String16(); | |
| 193 return toProtocolString(value.As<v8::String>()); | |
| 194 } | |
| 195 | |
| 196 String16 toString16(const StringView& string) | |
| 197 { | |
| 198 if (!string.length()) | |
| 199 return String16(); | |
| 200 if (string.is8Bit()) | |
| 201 return String16(reinterpret_cast<const char*>(string.characters8()), str
ing.length()); | |
| 202 return String16(reinterpret_cast<const UChar*>(string.characters16()), strin
g.length()); | |
| 203 } | |
| 204 | |
| 205 StringView toStringView(const String16& string) | |
| 206 { | |
| 207 if (string.isEmpty()) | |
| 208 return StringView(); | |
| 209 return StringView(reinterpret_cast<const uint16_t*>(string.characters16()),
string.length()); | |
| 210 } | |
| 211 | |
| 212 bool stringViewStartsWith(const StringView& string, const char* prefix) | |
| 213 { | |
| 214 if (!string.length()) | |
| 215 return !(*prefix); | |
| 216 if (string.is8Bit()) { | |
| 217 for (size_t i = 0, j = 0; prefix[j] && i < string.length(); ++i, ++j) { | |
| 218 if (string.characters8()[i] != prefix[j]) | |
| 219 return false; | |
| 220 } | |
| 221 } else { | |
| 222 for (size_t i = 0, j = 0; prefix[j] && i < string.length(); ++i, ++j) { | |
| 223 if (string.characters16()[i] != prefix[j]) | |
| 224 return false; | |
| 225 } | |
| 226 } | |
| 227 return true; | |
| 228 } | |
| 229 | |
| 230 std::unique_ptr<protocol::Value> parseJSON(const StringView& string) | |
| 231 { | |
| 232 if (!string.length()) | |
| 233 return nullptr; | |
| 234 if (string.is8Bit()) | |
| 235 return blink::protocol::parseJSON(string.characters8(), string.length())
; | |
| 236 return blink::protocol::parseJSON(string.characters16(), string.length()); | |
| 237 } | |
| 238 | |
| 239 std::vector<std::unique_ptr<protocol::Debugger::SearchMatch>> searchInTextByLine
sImpl(V8InspectorSession* session, const String16& text, const String16& query,
const bool caseSensitive, const bool isRegex) | |
| 240 { | |
| 241 std::unique_ptr<V8Regex> regex = createSearchRegex(static_cast<V8InspectorSe
ssionImpl*>(session)->inspector(), query, caseSensitive, isRegex); | |
| 242 std::vector<std::pair<int, String16>> matches = scriptRegexpMatchesByLines(*
regex.get(), text); | |
| 243 | |
| 244 std::vector<std::unique_ptr<protocol::Debugger::SearchMatch>> result; | |
| 245 for (const auto& match : matches) | |
| 246 result.push_back(buildObjectForSearchMatch(match.first, match.second)); | |
| 247 return result; | |
| 248 } | |
| 249 | |
| 250 String16 findSourceURL(const String16& content, bool multiline) | |
| 251 { | |
| 252 return findMagicComment(content, "sourceURL", multiline); | |
| 253 } | |
| 254 | |
| 255 String16 findSourceMapURL(const String16& content, bool multiline) | |
| 256 { | |
| 257 return findMagicComment(content, "sourceMappingURL", multiline); | |
| 258 } | |
| 259 | |
| 260 std::unique_ptr<protocol::Value> toProtocolValue(v8::Local<v8::Context> context,
v8::Local<v8::Value> value, int maxDepth) | |
| 261 { | |
| 262 if (value.IsEmpty()) { | |
| 263 NOTREACHED(); | |
| 264 return nullptr; | |
| 265 } | |
| 266 | |
| 267 if (!maxDepth) | |
| 268 return nullptr; | |
| 269 maxDepth--; | |
| 270 | |
| 271 if (value->IsNull() || value->IsUndefined()) | |
| 272 return protocol::Value::null(); | |
| 273 if (value->IsBoolean()) | |
| 274 return protocol::FundamentalValue::create(value.As<v8::Boolean>()->Value
()); | |
| 275 if (value->IsNumber()) { | |
| 276 double doubleValue = value.As<v8::Number>()->Value(); | |
| 277 int intValue = static_cast<int>(doubleValue); | |
| 278 if (intValue == doubleValue) | |
| 279 return protocol::FundamentalValue::create(intValue); | |
| 280 return protocol::FundamentalValue::create(doubleValue); | |
| 281 } | |
| 282 if (value->IsString()) | |
| 283 return protocol::StringValue::create(toProtocolString(value.As<v8::Strin
g>())); | |
| 284 if (value->IsArray()) { | |
| 285 v8::Local<v8::Array> array = value.As<v8::Array>(); | |
| 286 std::unique_ptr<protocol::ListValue> inspectorArray = protocol::ListValu
e::create(); | |
| 287 uint32_t length = array->Length(); | |
| 288 for (uint32_t i = 0; i < length; i++) { | |
| 289 v8::Local<v8::Value> value; | |
| 290 if (!array->Get(context, i).ToLocal(&value)) | |
| 291 return nullptr; | |
| 292 std::unique_ptr<protocol::Value> element = toProtocolValue(context,
value, maxDepth); | |
| 293 if (!element) | |
| 294 return nullptr; | |
| 295 inspectorArray->pushValue(std::move(element)); | |
| 296 } | |
| 297 return std::move(inspectorArray); | |
| 298 } | |
| 299 if (value->IsObject()) { | |
| 300 std::unique_ptr<protocol::DictionaryValue> jsonObject = protocol::Dictio
naryValue::create(); | |
| 301 v8::Local<v8::Object> object = v8::Local<v8::Object>::Cast(value); | |
| 302 v8::Local<v8::Array> propertyNames; | |
| 303 if (!object->GetPropertyNames(context).ToLocal(&propertyNames)) | |
| 304 return nullptr; | |
| 305 uint32_t length = propertyNames->Length(); | |
| 306 for (uint32_t i = 0; i < length; i++) { | |
| 307 v8::Local<v8::Value> name; | |
| 308 if (!propertyNames->Get(context, i).ToLocal(&name)) | |
| 309 return nullptr; | |
| 310 // FIXME(yurys): v8::Object should support GetOwnPropertyNames | |
| 311 if (name->IsString()) { | |
| 312 v8::Maybe<bool> hasRealNamedProperty = object->HasRealNamedPrope
rty(context, v8::Local<v8::String>::Cast(name)); | |
| 313 if (!hasRealNamedProperty.IsJust() || !hasRealNamedProperty.From
Just()) | |
| 314 continue; | |
| 315 } | |
| 316 v8::Local<v8::String> propertyName; | |
| 317 if (!name->ToString(context).ToLocal(&propertyName)) | |
| 318 continue; | |
| 319 v8::Local<v8::Value> property; | |
| 320 if (!object->Get(context, name).ToLocal(&property)) | |
| 321 return nullptr; | |
| 322 std::unique_ptr<protocol::Value> propertyValue = toProtocolValue(con
text, property, maxDepth); | |
| 323 if (!propertyValue) | |
| 324 return nullptr; | |
| 325 jsonObject->setValue(toProtocolString(propertyName), std::move(prope
rtyValue)); | |
| 326 } | |
| 327 return std::move(jsonObject); | |
| 328 } | |
| 329 NOTREACHED(); | |
| 330 return nullptr; | |
| 331 } | |
| 332 | |
| 333 // static | |
| 334 std::unique_ptr<StringBuffer> StringBuffer::create(const StringView& string) | |
| 335 { | |
| 336 String16 owner = toString16(string); | |
| 337 return StringBufferImpl::adopt(owner); | |
| 338 } | |
| 339 | |
| 340 // static | |
| 341 std::unique_ptr<StringBufferImpl> StringBufferImpl::adopt(String16& string) | |
| 342 { | |
| 343 return wrapUnique(new StringBufferImpl(string)); | |
| 344 } | |
| 345 | |
| 346 StringBufferImpl::StringBufferImpl(String16& string) | |
| 347 { | |
| 348 m_owner.swap(string); | |
| 349 m_string = toStringView(m_owner); | |
| 350 } | |
| 351 | |
| 352 } // namespace v8_inspector | |
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Chromium Code Reviews
Issue 2251343003:
[DevTools] Generate separate copies of inspector_protocol. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master