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| 1 # Copyright (c) 2013 Google Inc. All rights reserved. | |
| 2 # | |
| 3 # Redistribution and use in source and binary forms, with or without | |
| 4 # modification, are permitted provided that the following conditions are | |
| 5 # met: | |
| 6 # | |
| 7 # * Redistributions of source code must retain the above copyright | |
| 8 # notice, this list of conditions and the following disclaimer. | |
| 9 # * Redistributions in binary form must reproduce the above | |
| 10 # copyright notice, this list of conditions and the following disclaimer | |
| 11 # in the documentation and/or other materials provided with the | |
| 12 # distribution. | |
| 13 # * Neither the name of Google Inc. nor the names of its | |
| 14 # contributors may be used to endorse or promote products derived from | |
| 15 # this software without specific prior written permission. | |
| 16 # | |
| 17 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 18 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 19 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 20 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 21 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 22 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 23 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 24 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 25 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 26 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 27 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 28 | |
| 29 # THis file contains string resources for CodeGenerator. | |
| 30 # Its syntax is a Python syntax subset, suitable for manual parsing. | |
| 31 | |
| 32 frontend_domain_class = ( | |
| 33 """ class PLATFORM_EXPORT $domainClassName { | |
| 34 public: | |
| 35 static $domainClassName* from(Frontend* frontend) { return &(frontend->m
_$domainFieldName) ;} | |
| 36 $domainClassName(FrontendChannel* frontendChannel) : m_frontendChannel(f
rontendChannel) { } | |
| 37 ${frontendDomainMethodDeclarations} | |
| 38 void flush() { m_frontendChannel->flush(); } | |
| 39 private: | |
| 40 FrontendChannel* m_frontendChannel; | |
| 41 }; | |
| 42 | |
| 43 """) | |
| 44 | |
| 45 backend_method = ( | |
| 46 """void DispatcherImpl::${domainName}_$methodName(int sessionId, int callId, JSO
NObject*$requestMessageObject, JSONArray* protocolErrors) | |
| 47 { | |
| 48 if (!$agentField) | |
| 49 protocolErrors->pushString("${domainName} handler is not available."); | |
| 50 $methodCode | |
| 51 if (protocolErrors->length()) { | |
| 52 reportProtocolError(sessionId, callId, InvalidParams, String::format(Inv
alidParamsFormatString, commandName($commandNameIndex)), protocolErrors); | |
| 53 return; | |
| 54 } | |
| 55 $agentCallParamsDeclaration | |
| 56 $agentField->$methodName($agentCallParams); | |
| 57 $responseCook | |
| 58 sendResponse(sessionId, callId, $sendResponseCallParams); | |
| 59 } | |
| 60 """) | |
| 61 | |
| 62 frontend_method = ("""void Frontend::$domainName::$eventName($parameters) | |
| 63 { | |
| 64 RefPtr<JSONObject> jsonMessage = JSONObject::create(); | |
| 65 jsonMessage->setString("method", "$domainName.$eventName"); | |
| 66 $code if (m_frontendChannel) | |
| 67 m_frontendChannel->sendProtocolNotification(jsonMessage.release()); | |
| 68 } | |
| 69 """) | |
| 70 | |
| 71 callback_main_methods = (""" | |
| 72 Dispatcher::$agentName::$callbackName::$callbackName(PassRefPtr<DispatcherImpl>
backendImpl, int sessionId, int id) : CallbackBase(backendImpl, sessionId, id) {
} | |
| 73 | |
| 74 void Dispatcher::$agentName::$callbackName::sendSuccess($parameters) | |
| 75 { | |
| 76 RefPtr<JSONObject> jsonMessage = JSONObject::create(); | |
| 77 $code sendIfActive(jsonMessage, ErrorString(), PassRefPtr<JSONValue>()); | |
| 78 } | |
| 79 """) | |
| 80 | |
| 81 | |
| 82 frontend_h = ( | |
| 83 """#ifndef Frontend_h | |
| 84 #define Frontend_h | |
| 85 | |
| 86 #include "platform/inspector_protocol/TypeBuilder.h" | |
| 87 | |
| 88 #include "platform/JSONValues.h" | |
| 89 #include "platform/PlatformExport.h" | |
| 90 #include "platform/inspector_protocol/FrontendChannel.h" | |
| 91 #include "wtf/PassRefPtr.h" | |
| 92 #include "wtf/text/WTFString.h" | |
| 93 | |
| 94 namespace blink { | |
| 95 namespace protocol { | |
| 96 | |
| 97 using ErrorString = String; | |
| 98 | |
| 99 class PLATFORM_EXPORT Frontend { | |
| 100 public: | |
| 101 Frontend(FrontendChannel*); | |
| 102 FrontendChannel* channel() { return m_frontendChannel; } | |
| 103 | |
| 104 $domainClassList | |
| 105 private: | |
| 106 FrontendChannel* m_frontendChannel; | |
| 107 ${fieldDeclarations}}; | |
| 108 | |
| 109 } // namespace protocol | |
| 110 } // namespace blink | |
| 111 #endif // !defined(Frontend_h) | |
| 112 """) | |
| 113 | |
| 114 backend_h = ( | |
| 115 """#ifndef Dispatcher_h | |
| 116 #define Dispatcher_h | |
| 117 | |
| 118 #include "platform/inspector_protocol/TypeBuilder.h" | |
| 119 | |
| 120 #include "platform/PlatformExport.h" | |
| 121 #include "platform/heap/Handle.h" | |
| 122 #include "wtf/PassRefPtr.h" | |
| 123 #include "wtf/RefCounted.h" | |
| 124 #include "wtf/text/WTFString.h" | |
| 125 | |
| 126 namespace blink { | |
| 127 | |
| 128 class JSONObject; | |
| 129 class JSONArray; | |
| 130 | |
| 131 namespace protocol { | |
| 132 | |
| 133 class FrontendChannel; | |
| 134 | |
| 135 using ErrorString = String; | |
| 136 | |
| 137 class DispatcherImpl; | |
| 138 | |
| 139 class PLATFORM_EXPORT Dispatcher: public RefCounted<Dispatcher> { | |
| 140 public: | |
| 141 static PassRefPtr<Dispatcher> create(FrontendChannel* frontendChannel); | |
| 142 virtual ~Dispatcher() { } | |
| 143 | |
| 144 class PLATFORM_EXPORT CallbackBase: public RefCounted<CallbackBase> { | |
| 145 public: | |
| 146 CallbackBase(PassRefPtr<DispatcherImpl> backendImpl, int sessionId, int
id); | |
| 147 virtual ~CallbackBase(); | |
| 148 void sendFailure(const ErrorString&); | |
| 149 bool isActive(); | |
| 150 | |
| 151 protected: | |
| 152 void sendIfActive(PassRefPtr<JSONObject> partialMessage, const ErrorStri
ng& invocationError, PassRefPtr<JSONValue> errorData); | |
| 153 | |
| 154 private: | |
| 155 void disable() { m_alreadySent = true; } | |
| 156 | |
| 157 RefPtr<DispatcherImpl> m_backendImpl; | |
| 158 int m_sessionId; | |
| 159 int m_id; | |
| 160 bool m_alreadySent; | |
| 161 | |
| 162 friend class DispatcherImpl; | |
| 163 }; | |
| 164 | |
| 165 $agentInterfaces | |
| 166 $virtualSetters | |
| 167 | |
| 168 virtual void clearFrontend() = 0; | |
| 169 | |
| 170 enum CommonErrorCode { | |
| 171 ParseError = 0, | |
| 172 InvalidRequest, | |
| 173 MethodNotFound, | |
| 174 InvalidParams, | |
| 175 InternalError, | |
| 176 ServerError, | |
| 177 LastEntry, | |
| 178 }; | |
| 179 | |
| 180 void reportProtocolError(int sessionId, int callId, CommonErrorCode, const S
tring& errorMessage) const; | |
| 181 virtual void reportProtocolError(int sessionId, int callId, CommonErrorCode,
const String& errorMessage, PassRefPtr<JSONValue> data) const = 0; | |
| 182 virtual void dispatch(int sessionId, const String& message) = 0; | |
| 183 static bool getCommandName(const String& message, String* result); | |
| 184 | |
| 185 enum MethodNames { | |
| 186 $methodNamesEnumContent | |
| 187 | |
| 188 kMethodNamesEnumSize | |
| 189 }; | |
| 190 | |
| 191 static const char* commandName(MethodNames); | |
| 192 | |
| 193 private: | |
| 194 static const char commandNames[]; | |
| 195 static const unsigned short commandNamesIndex[]; | |
| 196 }; | |
| 197 | |
| 198 } // namespace protocol | |
| 199 } // namespace blink | |
| 200 | |
| 201 using blink::protocol::ErrorString; | |
| 202 | |
| 203 #endif // !defined(Dispatcher_h) | |
| 204 | |
| 205 | |
| 206 """) | |
| 207 | |
| 208 backend_cpp = ( | |
| 209 """ | |
| 210 | |
| 211 #include "platform/inspector_protocol/Dispatcher.h" | |
| 212 | |
| 213 #include "platform/JSONParser.h" | |
| 214 #include "platform/JSONValues.h" | |
| 215 #include "platform/inspector_protocol/FrontendChannel.h" | |
| 216 #include "wtf/text/CString.h" | |
| 217 #include "wtf/text/WTFString.h" | |
| 218 | |
| 219 namespace blink { | |
| 220 namespace protocol { | |
| 221 | |
| 222 const char Dispatcher::commandNames[] = { | |
| 223 $methodNameDeclarations | |
| 224 }; | |
| 225 | |
| 226 const unsigned short Dispatcher::commandNamesIndex[] = { | |
| 227 $methodNameDeclarationsIndex | |
| 228 }; | |
| 229 | |
| 230 const char* Dispatcher::commandName(MethodNames index) { | |
| 231 static_assert(static_cast<int>(kMethodNamesEnumSize) == WTF_ARRAY_LENGTH(com
mandNamesIndex), "MethodNames enum should have the same number of elements as co
mmandNamesIndex"); | |
| 232 return commandNames + commandNamesIndex[index]; | |
| 233 } | |
| 234 | |
| 235 class DispatcherImpl : public Dispatcher { | |
| 236 public: | |
| 237 DispatcherImpl(FrontendChannel* frontendChannel) | |
| 238 : m_frontendChannel(frontendChannel) | |
| 239 $constructorInit | |
| 240 { | |
| 241 // Initialize dispatch map. | |
| 242 const CallHandler handlers[] = { | |
| 243 $messageHandlers | |
| 244 }; | |
| 245 for (size_t i = 0; i < kMethodNamesEnumSize; ++i) | |
| 246 m_dispatchMap.add(commandName(static_cast<MethodNames>(i)), handlers
[i]); | |
| 247 | |
| 248 // Initialize common errors. | |
| 249 m_commonErrors.insert(ParseError, -32700); | |
| 250 m_commonErrors.insert(InvalidRequest, -32600); | |
| 251 m_commonErrors.insert(MethodNotFound, -32601); | |
| 252 m_commonErrors.insert(InvalidParams, -32602); | |
| 253 m_commonErrors.insert(InternalError, -32603); | |
| 254 m_commonErrors.insert(ServerError, -32000); | |
| 255 } | |
| 256 | |
| 257 virtual void clearFrontend() { m_frontendChannel = 0; } | |
| 258 virtual void dispatch(int sessionId, const String& message); | |
| 259 virtual void reportProtocolError(int sessionId, int callId, CommonErrorCode,
const String& errorMessage, PassRefPtr<JSONValue> data) const; | |
| 260 using Dispatcher::reportProtocolError; | |
| 261 | |
| 262 void sendResponse(int sessionId, int callId, const ErrorString& invocationEr
ror, PassRefPtr<JSONValue> errorData, PassRefPtr<JSONObject> result); | |
| 263 bool isActive() { return m_frontendChannel; } | |
| 264 | |
| 265 $setters | |
| 266 private: | |
| 267 using CallHandler = void (DispatcherImpl::*)(int sessionId, int callId, JSON
Object* messageObject, JSONArray* protocolErrors); | |
| 268 using DispatchMap = HashMap<String, CallHandler>; | |
| 269 | |
| 270 $methodDeclarations | |
| 271 | |
| 272 FrontendChannel* m_frontendChannel; | |
| 273 $fieldDeclarations | |
| 274 | |
| 275 template<typename R, typename V, typename V0> | |
| 276 static R getPropertyValueImpl(JSONObject* object, const char* name, bool* va
lueFound, JSONArray* protocolErrors, V0 initial_value, bool (*as_method)(JSONVal
ue*, V*), const char* type_name); | |
| 277 | |
| 278 static int getInt(JSONObject* object, const char* name, bool* valueFound, JS
ONArray* protocolErrors); | |
| 279 static double getDouble(JSONObject* object, const char* name, bool* valueFou
nd, JSONArray* protocolErrors); | |
| 280 static String getString(JSONObject* object, const char* name, bool* valueFou
nd, JSONArray* protocolErrors); | |
| 281 static bool getBoolean(JSONObject* object, const char* name, bool* valueFoun
d, JSONArray* protocolErrors); | |
| 282 static PassRefPtr<JSONObject> getObject(JSONObject* object, const char* name
, bool* valueFound, JSONArray* protocolErrors); | |
| 283 static PassRefPtr<JSONArray> getArray(JSONObject* object, const char* name,
bool* valueFound, JSONArray* protocolErrors); | |
| 284 | |
| 285 void sendResponse(int sessionId, int callId, ErrorString invocationError, Pa
ssRefPtr<JSONObject> result) | |
| 286 { | |
| 287 sendResponse(sessionId, callId, invocationError, RefPtr<JSONValue>(), re
sult); | |
| 288 } | |
| 289 void sendResponse(int sessionId, int callId, ErrorString invocationError) | |
| 290 { | |
| 291 sendResponse(sessionId, callId, invocationError, RefPtr<JSONValue>(), JS
ONObject::create()); | |
| 292 } | |
| 293 static const char InvalidParamsFormatString[]; | |
| 294 | |
| 295 DispatchMap m_dispatchMap; | |
| 296 Vector<int> m_commonErrors; | |
| 297 }; | |
| 298 | |
| 299 const char DispatcherImpl::InvalidParamsFormatString[] = "Some arguments of meth
od '%s' can't be processed"; | |
| 300 | |
| 301 $methods | |
| 302 | |
| 303 PassRefPtr<Dispatcher> Dispatcher::create(FrontendChannel* frontendChannel) | |
| 304 { | |
| 305 return adoptRef(new DispatcherImpl(frontendChannel)); | |
| 306 } | |
| 307 | |
| 308 | |
| 309 void DispatcherImpl::dispatch(int sessionId, const String& message) | |
| 310 { | |
| 311 RefPtr<Dispatcher> protect(this); | |
| 312 int callId = 0; | |
| 313 RefPtr<JSONValue> parsedMessage = parseJSON(message); | |
| 314 ASSERT(parsedMessage); | |
| 315 RefPtr<JSONObject> messageObject = parsedMessage->asObject(); | |
| 316 ASSERT(messageObject); | |
| 317 | |
| 318 RefPtr<JSONValue> callIdValue = messageObject->get("id"); | |
| 319 bool success = callIdValue->asNumber(&callId); | |
| 320 ASSERT_UNUSED(success, success); | |
| 321 | |
| 322 RefPtr<JSONValue> methodValue = messageObject->get("method"); | |
| 323 String method; | |
| 324 success = methodValue && methodValue->asString(&method); | |
| 325 ASSERT_UNUSED(success, success); | |
| 326 | |
| 327 HashMap<String, CallHandler>::iterator it = m_dispatchMap.find(method); | |
| 328 if (it == m_dispatchMap.end()) { | |
| 329 reportProtocolError(sessionId, callId, MethodNotFound, "'" + method + "'
wasn't found"); | |
| 330 return; | |
| 331 } | |
| 332 | |
| 333 RefPtr<JSONArray> protocolErrors = JSONArray::create(); | |
| 334 ((*this).*it->value)(sessionId, callId, messageObject.get(), protocolErrors.
get()); | |
| 335 } | |
| 336 | |
| 337 void DispatcherImpl::sendResponse(int sessionId, int callId, const ErrorString&
invocationError, PassRefPtr<JSONValue> errorData, PassRefPtr<JSONObject> result) | |
| 338 { | |
| 339 if (invocationError.length()) { | |
| 340 reportProtocolError(sessionId, callId, ServerError, invocationError, err
orData); | |
| 341 return; | |
| 342 } | |
| 343 | |
| 344 RefPtr<JSONObject> responseMessage = JSONObject::create(); | |
| 345 responseMessage->setNumber("id", callId); | |
| 346 responseMessage->setObject("result", result); | |
| 347 if (m_frontendChannel) | |
| 348 m_frontendChannel->sendProtocolResponse(sessionId, callId, responseMessa
ge.release()); | |
| 349 } | |
| 350 | |
| 351 void Dispatcher::reportProtocolError(int sessionId, int callId, CommonErrorCode
code, const String& errorMessage) const | |
| 352 { | |
| 353 reportProtocolError(sessionId, callId, code, errorMessage, PassRefPtr<JSONVa
lue>()); | |
| 354 } | |
| 355 | |
| 356 void DispatcherImpl::reportProtocolError(int sessionId, int callId, CommonErrorC
ode code, const String& errorMessage, PassRefPtr<JSONValue> data) const | |
| 357 { | |
| 358 ASSERT(code >=0); | |
| 359 ASSERT((unsigned)code < m_commonErrors.size()); | |
| 360 ASSERT(m_commonErrors[code]); | |
| 361 RefPtr<JSONObject> error = JSONObject::create(); | |
| 362 error->setNumber("code", m_commonErrors[code]); | |
| 363 error->setString("message", errorMessage); | |
| 364 ASSERT(error); | |
| 365 if (data) | |
| 366 error->setValue("data", data); | |
| 367 RefPtr<JSONObject> message = JSONObject::create(); | |
| 368 message->setObject("error", error); | |
| 369 message->setNumber("id", callId); | |
| 370 if (m_frontendChannel) | |
| 371 m_frontendChannel->sendProtocolResponse(sessionId, callId, message.relea
se()); | |
| 372 } | |
| 373 | |
| 374 template<typename R, typename V, typename V0> | |
| 375 R DispatcherImpl::getPropertyValueImpl(JSONObject* object, const char* name, boo
l* valueFound, JSONArray* protocolErrors, V0 initial_value, bool (*as_method)(JS
ONValue*, V*), const char* type_name) | |
| 376 { | |
| 377 ASSERT(protocolErrors); | |
| 378 | |
| 379 if (valueFound) | |
| 380 *valueFound = false; | |
| 381 | |
| 382 V value = initial_value; | |
| 383 | |
| 384 if (!object) { | |
| 385 if (!valueFound) { | |
| 386 // Required parameter in missing params container. | |
| 387 protocolErrors->pushString(String::format("'params' object must cont
ain required parameter '%s' with type '%s'.", name, type_name)); | |
| 388 } | |
| 389 return value; | |
| 390 } | |
| 391 | |
| 392 JSONObject::const_iterator end = object->end(); | |
| 393 JSONObject::const_iterator valueIterator = object->find(name); | |
| 394 | |
| 395 if (valueIterator == end) { | |
| 396 if (!valueFound) | |
| 397 protocolErrors->pushString(String::format("Parameter '%s' with type
'%s' was not found.", name, type_name)); | |
| 398 return value; | |
| 399 } | |
| 400 | |
| 401 if (!as_method(valueIterator->value.get(), &value)) | |
| 402 protocolErrors->pushString(String::format("Parameter '%s' has wrong type
. It must be '%s'.", name, type_name)); | |
| 403 else | |
| 404 if (valueFound) | |
| 405 *valueFound = true; | |
| 406 return value; | |
| 407 } | |
| 408 | |
| 409 struct AsMethodBridges { | |
| 410 static bool asInt(JSONValue* value, int* output) { return value->asNumber(ou
tput); } | |
| 411 static bool asDouble(JSONValue* value, double* output) { return value->asNum
ber(output); } | |
| 412 static bool asString(JSONValue* value, String* output) { return value->asStr
ing(output); } | |
| 413 static bool asBoolean(JSONValue* value, bool* output) { return value->asBool
ean(output); } | |
| 414 static bool asObject(JSONValue* value, RefPtr<JSONObject>* output) { return
value->asObject(output); } | |
| 415 static bool asArray(JSONValue* value, RefPtr<JSONArray>* output) { return va
lue->asArray(output); } | |
| 416 }; | |
| 417 | |
| 418 int DispatcherImpl::getInt(JSONObject* object, const char* name, bool* valueFoun
d, JSONArray* protocolErrors) | |
| 419 { | |
| 420 return getPropertyValueImpl<int, int, int>(object, name, valueFound, protoco
lErrors, 0, AsMethodBridges::asInt, "Number"); | |
| 421 } | |
| 422 | |
| 423 double DispatcherImpl::getDouble(JSONObject* object, const char* name, bool* val
ueFound, JSONArray* protocolErrors) | |
| 424 { | |
| 425 return getPropertyValueImpl<double, double, double>(object, name, valueFound
, protocolErrors, 0, AsMethodBridges::asDouble, "Number"); | |
| 426 } | |
| 427 | |
| 428 String DispatcherImpl::getString(JSONObject* object, const char* name, bool* val
ueFound, JSONArray* protocolErrors) | |
| 429 { | |
| 430 return getPropertyValueImpl<String, String, String>(object, name, valueFound
, protocolErrors, "", AsMethodBridges::asString, "String"); | |
| 431 } | |
| 432 | |
| 433 bool DispatcherImpl::getBoolean(JSONObject* object, const char* name, bool* valu
eFound, JSONArray* protocolErrors) | |
| 434 { | |
| 435 return getPropertyValueImpl<bool, bool, bool>(object, name, valueFound, prot
ocolErrors, false, AsMethodBridges::asBoolean, "Boolean"); | |
| 436 } | |
| 437 | |
| 438 PassRefPtr<JSONObject> DispatcherImpl::getObject(JSONObject* object, const char*
name, bool* valueFound, JSONArray* protocolErrors) | |
| 439 { | |
| 440 return getPropertyValueImpl<PassRefPtr<JSONObject>, RefPtr<JSONObject>, JSON
Object*>(object, name, valueFound, protocolErrors, 0, AsMethodBridges::asObject,
"Object"); | |
| 441 } | |
| 442 | |
| 443 PassRefPtr<JSONArray> DispatcherImpl::getArray(JSONObject* object, const char* n
ame, bool* valueFound, JSONArray* protocolErrors) | |
| 444 { | |
| 445 return getPropertyValueImpl<PassRefPtr<JSONArray>, RefPtr<JSONArray>, JSONAr
ray*>(object, name, valueFound, protocolErrors, 0, AsMethodBridges::asArray, "Ar
ray"); | |
| 446 } | |
| 447 | |
| 448 bool Dispatcher::getCommandName(const String& message, String* result) | |
| 449 { | |
| 450 RefPtr<JSONValue> value = parseJSON(message); | |
| 451 if (!value) | |
| 452 return false; | |
| 453 | |
| 454 RefPtr<JSONObject> object = value->asObject(); | |
| 455 if (!object) | |
| 456 return false; | |
| 457 | |
| 458 if (!object->getString("method", result)) | |
| 459 return false; | |
| 460 | |
| 461 return true; | |
| 462 } | |
| 463 | |
| 464 Dispatcher::CallbackBase::CallbackBase(PassRefPtr<DispatcherImpl> backendImpl, i
nt sessionId, int id) | |
| 465 : m_backendImpl(backendImpl), m_sessionId(sessionId), m_id(id), m_alreadySen
t(false) {} | |
| 466 | |
| 467 Dispatcher::CallbackBase::~CallbackBase() {} | |
| 468 | |
| 469 void Dispatcher::CallbackBase::sendFailure(const ErrorString& error) | |
| 470 { | |
| 471 ASSERT(error.length()); | |
| 472 sendIfActive(nullptr, error, PassRefPtr<JSONValue>()); | |
| 473 } | |
| 474 | |
| 475 bool Dispatcher::CallbackBase::isActive() | |
| 476 { | |
| 477 return !m_alreadySent && m_backendImpl->isActive(); | |
| 478 } | |
| 479 | |
| 480 void Dispatcher::CallbackBase::sendIfActive(PassRefPtr<JSONObject> partialMessag
e, const ErrorString& invocationError, PassRefPtr<JSONValue> errorData) | |
| 481 { | |
| 482 if (m_alreadySent) | |
| 483 return; | |
| 484 m_backendImpl->sendResponse(m_sessionId, m_id, invocationError, errorData, p
artialMessage); | |
| 485 m_alreadySent = true; | |
| 486 } | |
| 487 | |
| 488 } // namespace protocol | |
| 489 } // namespace blink | |
| 490 | |
| 491 """) | |
| 492 | |
| 493 frontend_cpp = ( | |
| 494 """ | |
| 495 | |
| 496 #include "platform/inspector_protocol/Frontend.h" | |
| 497 | |
| 498 #include "platform/JSONValues.h" | |
| 499 #include "platform/inspector_protocol/FrontendChannel.h" | |
| 500 #include "wtf/text/CString.h" | |
| 501 #include "wtf/text/WTFString.h" | |
| 502 | |
| 503 namespace blink { | |
| 504 namespace protocol { | |
| 505 | |
| 506 Frontend::Frontend(FrontendChannel* frontendChannel) | |
| 507 : m_frontendChannel(frontendChannel) | |
| 508 , $constructorInit | |
| 509 { | |
| 510 } | |
| 511 | |
| 512 $methods | |
| 513 | |
| 514 } // namespace protocol | |
| 515 } // namespace blink | |
| 516 | |
| 517 """) | |
| 518 | |
| 519 typebuilder_h = ( | |
| 520 """ | |
| 521 #ifndef TypeBuilder_h | |
| 522 #define TypeBuilder_h | |
| 523 | |
| 524 #include "platform/JSONValues.h" | |
| 525 #include "platform/PlatformExport.h" | |
| 526 #include "wtf/Assertions.h" | |
| 527 #include "wtf/PassRefPtr.h" | |
| 528 | |
| 529 namespace blink { | |
| 530 namespace protocol { | |
| 531 | |
| 532 namespace TypeBuilder { | |
| 533 | |
| 534 template<typename T> | |
| 535 class OptOutput { | |
| 536 public: | |
| 537 OptOutput() : m_assigned(false) { } | |
| 538 | |
| 539 void operator=(T value) | |
| 540 { | |
| 541 m_value = value; | |
| 542 m_assigned = true; | |
| 543 } | |
| 544 | |
| 545 bool isAssigned() { return m_assigned; } | |
| 546 | |
| 547 T getValue() | |
| 548 { | |
| 549 ASSERT(isAssigned()); | |
| 550 return m_value; | |
| 551 } | |
| 552 | |
| 553 private: | |
| 554 T m_value; | |
| 555 bool m_assigned; | |
| 556 | |
| 557 WTF_MAKE_NONCOPYABLE(OptOutput); | |
| 558 }; | |
| 559 | |
| 560 class RuntimeCastHelper { | |
| 561 public: | |
| 562 #if $validatorIfdefName | |
| 563 template<JSONValue::Type TYPE> | |
| 564 static void assertType(JSONValue* value) | |
| 565 { | |
| 566 ASSERT(value->type() == TYPE); | |
| 567 } | |
| 568 static void assertAny(JSONValue*); | |
| 569 static void assertInt(JSONValue* value); | |
| 570 #endif | |
| 571 }; | |
| 572 | |
| 573 | |
| 574 // This class provides "Traits" type for the input type T. It is programmed usin
g C++ template specialization | |
| 575 // technique. By default it simply takes "ItemTraits" type from T, but it doesn'
t work with the base types. | |
| 576 template<typename T> | |
| 577 struct ArrayItemHelper { | |
| 578 typedef typename T::ItemTraits Traits; | |
| 579 }; | |
| 580 | |
| 581 template<typename T> | |
| 582 class Array : public JSONArrayBase { | |
| 583 private: | |
| 584 Array() { } | |
| 585 | |
| 586 JSONArray* openAccessors() { | |
| 587 static_assert(sizeof(JSONArray) == sizeof(Array<T>), "JSONArray should b
e the same size as Array<T>"); | |
| 588 return static_cast<JSONArray*>(static_cast<JSONArrayBase*>(this)); | |
| 589 } | |
| 590 | |
| 591 public: | |
| 592 void addItem(PassRefPtr<T> value) | |
| 593 { | |
| 594 ArrayItemHelper<T>::Traits::pushRefPtr(this->openAccessors(), value); | |
| 595 } | |
| 596 | |
| 597 void addItem(T value) | |
| 598 { | |
| 599 ArrayItemHelper<T>::Traits::pushRaw(this->openAccessors(), value); | |
| 600 } | |
| 601 | |
| 602 static PassRefPtr<Array<T>> create() | |
| 603 { | |
| 604 return adoptRef(new Array<T>()); | |
| 605 } | |
| 606 | |
| 607 static PassRefPtr<Array<T>> runtimeCast(PassRefPtr<JSONValue> value) | |
| 608 { | |
| 609 RefPtr<JSONArray> array; | |
| 610 bool castRes = value->asArray(&array); | |
| 611 ASSERT_UNUSED(castRes, castRes); | |
| 612 #if $validatorIfdefName | |
| 613 assertCorrectValue(array.get()); | |
| 614 #endif // $validatorIfdefName | |
| 615 static_assert(sizeof(Array<T>) == sizeof(JSONArray), "Array<T> should be
the same size as JSONArray"); | |
| 616 return static_cast<Array<T>*>(static_cast<JSONArrayBase*>(array.get())); | |
| 617 } | |
| 618 | |
| 619 void concat(PassRefPtr<Array<T>> array) | |
| 620 { | |
| 621 return ArrayItemHelper<T>::Traits::concat(this->openAccessors(), array->
openAccessors()); | |
| 622 } | |
| 623 | |
| 624 #if $validatorIfdefName | |
| 625 static void assertCorrectValue(JSONValue* value) | |
| 626 { | |
| 627 RefPtr<JSONArray> array; | |
| 628 bool castRes = value->asArray(&array); | |
| 629 ASSERT_UNUSED(castRes, castRes); | |
| 630 for (unsigned i = 0; i < array->length(); i++) | |
| 631 ArrayItemHelper<T>::Traits::template assertCorrectValue<T>(array->ge
t(i).get()); | |
| 632 } | |
| 633 | |
| 634 #endif // $validatorIfdefName | |
| 635 }; | |
| 636 | |
| 637 struct StructItemTraits { | |
| 638 static void pushRefPtr(JSONArray* array, PassRefPtr<JSONValue> value) | |
| 639 { | |
| 640 array->pushValue(value); | |
| 641 } | |
| 642 | |
| 643 static void concat(JSONArray* array, JSONArray* anotherArray) | |
| 644 { | |
| 645 for (JSONArray::iterator it = anotherArray->begin(); it != anotherArray-
>end(); ++it) | |
| 646 array->pushValue(*it); | |
| 647 } | |
| 648 | |
| 649 #if $validatorIfdefName | |
| 650 template<typename T> | |
| 651 static void assertCorrectValue(JSONValue* value) { | |
| 652 T::assertCorrectValue(value); | |
| 653 } | |
| 654 #endif // $validatorIfdefName | |
| 655 }; | |
| 656 | |
| 657 template<> | |
| 658 struct ArrayItemHelper<String> { | |
| 659 struct Traits { | |
| 660 static void pushRaw(JSONArray* array, const String& value) | |
| 661 { | |
| 662 array->pushString(value); | |
| 663 } | |
| 664 | |
| 665 #if $validatorIfdefName | |
| 666 template<typename T> | |
| 667 static void assertCorrectValue(JSONValue* value) { | |
| 668 RuntimeCastHelper::assertType<JSONValue::TypeString>(value); | |
| 669 } | |
| 670 #endif // $validatorIfdefName | |
| 671 }; | |
| 672 }; | |
| 673 | |
| 674 template<> | |
| 675 struct ArrayItemHelper<int> { | |
| 676 struct Traits { | |
| 677 static void pushRaw(JSONArray* array, int value) | |
| 678 { | |
| 679 array->pushInt(value); | |
| 680 } | |
| 681 | |
| 682 #if $validatorIfdefName | |
| 683 template<typename T> | |
| 684 static void assertCorrectValue(JSONValue* value) { | |
| 685 RuntimeCastHelper::assertInt(value); | |
| 686 } | |
| 687 #endif // $validatorIfdefName | |
| 688 }; | |
| 689 }; | |
| 690 | |
| 691 template<> | |
| 692 struct ArrayItemHelper<double> { | |
| 693 struct Traits { | |
| 694 static void pushRaw(JSONArray* array, double value) | |
| 695 { | |
| 696 array->pushNumber(value); | |
| 697 } | |
| 698 | |
| 699 #if $validatorIfdefName | |
| 700 template<typename T> | |
| 701 static void assertCorrectValue(JSONValue* value) { | |
| 702 RuntimeCastHelper::assertType<JSONValue::TypeNumber>(value); | |
| 703 } | |
| 704 #endif // $validatorIfdefName | |
| 705 }; | |
| 706 }; | |
| 707 | |
| 708 template<> | |
| 709 struct ArrayItemHelper<bool> { | |
| 710 struct Traits { | |
| 711 static void pushRaw(JSONArray* array, bool value) | |
| 712 { | |
| 713 array->pushBoolean(value); | |
| 714 } | |
| 715 | |
| 716 #if $validatorIfdefName | |
| 717 template<typename T> | |
| 718 static void assertCorrectValue(JSONValue* value) { | |
| 719 RuntimeCastHelper::assertType<JSONValue::TypeBoolean>(value); | |
| 720 } | |
| 721 #endif // $validatorIfdefName | |
| 722 }; | |
| 723 }; | |
| 724 | |
| 725 template<> | |
| 726 struct ArrayItemHelper<JSONValue> { | |
| 727 struct Traits { | |
| 728 static void pushRefPtr(JSONArray* array, PassRefPtr<JSONValue> value) | |
| 729 { | |
| 730 array->pushValue(value); | |
| 731 } | |
| 732 | |
| 733 #if $validatorIfdefName | |
| 734 template<typename T> | |
| 735 static void assertCorrectValue(JSONValue* value) { | |
| 736 RuntimeCastHelper::assertAny(value); | |
| 737 } | |
| 738 #endif // $validatorIfdefName | |
| 739 }; | |
| 740 }; | |
| 741 | |
| 742 template<> | |
| 743 struct ArrayItemHelper<JSONObject> { | |
| 744 struct Traits { | |
| 745 static void pushRefPtr(JSONArray* array, PassRefPtr<JSONValue> value) | |
| 746 { | |
| 747 array->pushValue(value); | |
| 748 } | |
| 749 | |
| 750 #if $validatorIfdefName | |
| 751 template<typename T> | |
| 752 static void assertCorrectValue(JSONValue* value) { | |
| 753 RuntimeCastHelper::assertType<JSONValue::TypeObject>(value); | |
| 754 } | |
| 755 #endif // $validatorIfdefName | |
| 756 }; | |
| 757 }; | |
| 758 | |
| 759 template<> | |
| 760 struct ArrayItemHelper<JSONArray> { | |
| 761 struct Traits { | |
| 762 static void pushRefPtr(JSONArray* array, PassRefPtr<JSONArray> value) | |
| 763 { | |
| 764 array->pushArray(value); | |
| 765 } | |
| 766 | |
| 767 #if $validatorIfdefName | |
| 768 template<typename T> | |
| 769 static void assertCorrectValue(JSONValue* value) { | |
| 770 RuntimeCastHelper::assertType<JSONValue::TypeArray>(value); | |
| 771 } | |
| 772 #endif // $validatorIfdefName | |
| 773 }; | |
| 774 }; | |
| 775 | |
| 776 template<typename T> | |
| 777 struct ArrayItemHelper<protocol::TypeBuilder::Array<T>> { | |
| 778 struct Traits { | |
| 779 static void pushRefPtr(JSONArray* array, PassRefPtr<protocol::TypeBuilde
r::Array<T>> value) | |
| 780 { | |
| 781 array->pushValue(value); | |
| 782 } | |
| 783 | |
| 784 #if $validatorIfdefName | |
| 785 template<typename S> | |
| 786 static void assertCorrectValue(JSONValue* value) { | |
| 787 S::assertCorrectValue(value); | |
| 788 } | |
| 789 #endif // $validatorIfdefName | |
| 790 }; | |
| 791 }; | |
| 792 | |
| 793 ${forwards} | |
| 794 | |
| 795 PLATFORM_EXPORT String getEnumConstantValue(int code); | |
| 796 | |
| 797 ${typeBuilders} | |
| 798 } // namespace TypeBuilder | |
| 799 | |
| 800 } // namespace protocol | |
| 801 } // namespace blink | |
| 802 | |
| 803 #endif // !defined(TypeBuilder_h) | |
| 804 | |
| 805 """) | |
| 806 | |
| 807 typebuilder_cpp = ( | |
| 808 """ | |
| 809 | |
| 810 #include "platform/inspector_protocol/TypeBuilder.h" | |
| 811 #include "wtf/text/CString.h" | |
| 812 | |
| 813 namespace blink { | |
| 814 namespace protocol { | |
| 815 | |
| 816 namespace TypeBuilder { | |
| 817 | |
| 818 const char* const enum_constant_values[] = { | |
| 819 $enumConstantValues}; | |
| 820 | |
| 821 String getEnumConstantValue(int code) { | |
| 822 return enum_constant_values[code]; | |
| 823 } | |
| 824 | |
| 825 } // namespace TypeBuilder | |
| 826 | |
| 827 $implCode | |
| 828 | |
| 829 #if $validatorIfdefName | |
| 830 | |
| 831 void TypeBuilder::RuntimeCastHelper::assertAny(JSONValue*) | |
| 832 { | |
| 833 // No-op. | |
| 834 } | |
| 835 | |
| 836 | |
| 837 void TypeBuilder::RuntimeCastHelper::assertInt(JSONValue* value) | |
| 838 { | |
| 839 double v; | |
| 840 bool castRes = value->asNumber(&v); | |
| 841 ASSERT_UNUSED(castRes, castRes); | |
| 842 ASSERT(static_cast<double>(static_cast<int>(v)) == v); | |
| 843 } | |
| 844 | |
| 845 $validatorCode | |
| 846 | |
| 847 #endif // $validatorIfdefName | |
| 848 | |
| 849 } // namespace protocol | |
| 850 } // namespace blink | |
| 851 | |
| 852 """) | |
| 853 | |
| 854 param_container_access_code = """ | |
| 855 RefPtr<JSONObject> paramsContainer = requestMessageObject->getObject("params
"); | |
| 856 JSONObject* paramsContainerPtr = paramsContainer.get(); | |
| 857 """ | |
| 858 | |
| 859 class_binding_builder_part_1 = ( | |
| 860 """ AllFieldsSet = %s | |
| 861 }; | |
| 862 | |
| 863 template<int STATE> | |
| 864 class Builder { | |
| 865 private: | |
| 866 RefPtr<JSONObject> m_result; | |
| 867 | |
| 868 template<int STEP> Builder<STATE | STEP>& castState() | |
| 869 { | |
| 870 return *reinterpret_cast<Builder<STATE | STEP>*>(this); | |
| 871 } | |
| 872 | |
| 873 Builder(PassRefPtr</*%s*/JSONObject> ptr) | |
| 874 { | |
| 875 static_assert(STATE == NoFieldsSet, "builder should not be created i
n non-init state"); | |
| 876 m_result = ptr; | |
| 877 } | |
| 878 friend class %s; | |
| 879 public: | |
| 880 """) | |
| 881 | |
| 882 class_binding_builder_part_2 = (""" | |
| 883 Builder<STATE | %s>& set%s(%s value) | |
| 884 { | |
| 885 static_assert(!(STATE & %s), "property %s should not be set yet"); | |
| 886 m_result->set%s("%s", %s); | |
| 887 return castState<%s>(); | |
| 888 } | |
| 889 """) | |
| 890 | |
| 891 class_binding_builder_part_3 = (""" | |
| 892 operator RefPtr<%s>& () | |
| 893 { | |
| 894 static_assert(STATE == AllFieldsSet, "state should be AllFieldsSet")
; | |
| 895 static_assert(sizeof(%s) == sizeof(JSONObject), "%s should be the sa
me size as JSONObject"); | |
| 896 return *reinterpret_cast<RefPtr<%s>*>(&m_result); | |
| 897 } | |
| 898 | |
| 899 PassRefPtr<%s> release() | |
| 900 { | |
| 901 return RefPtr<%s>(*this).release(); | |
| 902 } | |
| 903 }; | |
| 904 | |
| 905 """) | |
| 906 | |
| 907 class_binding_builder_part_4 = ( | |
| 908 """ static Builder<NoFieldsSet> create() | |
| 909 { | |
| 910 return Builder<NoFieldsSet>(JSONObject::create()); | |
| 911 } | |
| 912 """) | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 1702673002:
DevTools: migrate remote debugging protocol generators to jinja2. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master