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| 1 // Copyright 2016 the V8 project 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 "src/inspector/V8Debugger.h" | |
| 6 | |
| 7 #include "src/inspector/DebuggerScript.h" | |
| 8 #include "src/inspector/ScriptBreakpoint.h" | |
| 9 #include "src/inspector/StringUtil.h" | |
| 10 #include "src/inspector/V8DebuggerAgentImpl.h" | |
| 11 #include "src/inspector/V8InspectorImpl.h" | |
| 12 #include "src/inspector/V8InternalValueType.h" | |
| 13 #include "src/inspector/V8StackTraceImpl.h" | |
| 14 #include "src/inspector/V8ValueCopier.h" | |
| 15 #include "src/inspector/protocol/Protocol.h" | |
| 16 | |
| 17 namespace v8_inspector { | |
| 18 | |
| 19 namespace { | |
| 20 const char stepIntoV8MethodName[] = "stepIntoStatement"; | |
| 21 const char stepOutV8MethodName[] = "stepOutOfFunction"; | |
| 22 static const char v8AsyncTaskEventEnqueue[] = "enqueue"; | |
| 23 static const char v8AsyncTaskEventWillHandle[] = "willHandle"; | |
| 24 static const char v8AsyncTaskEventDidHandle[] = "didHandle"; | |
| 25 | |
| 26 inline v8::Local<v8::Boolean> v8Boolean(bool value, v8::Isolate* isolate) { | |
| 27 return value ? v8::True(isolate) : v8::False(isolate); | |
| 28 } | |
| 29 | |
| 30 } // namespace | |
| 31 | |
| 32 static bool inLiveEditScope = false; | |
| 33 | |
| 34 v8::MaybeLocal<v8::Value> V8Debugger::callDebuggerMethod( | |
| 35 const char* functionName, int argc, v8::Local<v8::Value> argv[]) { | |
| 36 v8::MicrotasksScope microtasks(m_isolate, | |
| 37 v8::MicrotasksScope::kDoNotRunMicrotasks); | |
| 38 DCHECK(m_isolate->InContext()); | |
| 39 v8::Local<v8::Context> context = m_isolate->GetCurrentContext(); | |
| 40 v8::Local<v8::Object> debuggerScript = m_debuggerScript.Get(m_isolate); | |
| 41 v8::Local<v8::Function> function = v8::Local<v8::Function>::Cast( | |
| 42 debuggerScript | |
| 43 ->Get(context, toV8StringInternalized(m_isolate, functionName)) | |
| 44 .ToLocalChecked()); | |
| 45 return function->Call(context, debuggerScript, argc, argv); | |
| 46 } | |
| 47 | |
| 48 V8Debugger::V8Debugger(v8::Isolate* isolate, V8InspectorImpl* inspector) | |
| 49 : m_isolate(isolate), | |
| 50 m_inspector(inspector), | |
| 51 m_lastContextId(0), | |
| 52 m_enableCount(0), | |
| 53 m_breakpointsActivated(true), | |
| 54 m_runningNestedMessageLoop(false), | |
| 55 m_ignoreScriptParsedEventsCounter(0), | |
| 56 m_maxAsyncCallStackDepth(0) {} | |
| 57 | |
| 58 V8Debugger::~V8Debugger() {} | |
| 59 | |
| 60 void V8Debugger::enable() { | |
| 61 if (m_enableCount++) return; | |
| 62 DCHECK(!enabled()); | |
| 63 v8::HandleScope scope(m_isolate); | |
| 64 v8::Debug::SetDebugEventListener(m_isolate, &V8Debugger::v8DebugEventCallback, | |
| 65 v8::External::New(m_isolate, this)); | |
| 66 m_debuggerContext.Reset(m_isolate, v8::Debug::GetDebugContext(m_isolate)); | |
| 67 compileDebuggerScript(); | |
| 68 } | |
| 69 | |
| 70 void V8Debugger::disable() { | |
| 71 if (--m_enableCount) return; | |
| 72 DCHECK(enabled()); | |
| 73 clearBreakpoints(); | |
| 74 m_debuggerScript.Reset(); | |
| 75 m_debuggerContext.Reset(); | |
| 76 allAsyncTasksCanceled(); | |
| 77 v8::Debug::SetDebugEventListener(m_isolate, nullptr); | |
| 78 } | |
| 79 | |
| 80 bool V8Debugger::enabled() const { return !m_debuggerScript.IsEmpty(); } | |
| 81 | |
| 82 // static | |
| 83 int V8Debugger::contextId(v8::Local<v8::Context> context) { | |
| 84 v8::Local<v8::Value> data = | |
| 85 context->GetEmbedderData(static_cast<int>(v8::Context::kDebugIdIndex)); | |
| 86 if (data.IsEmpty() || !data->IsString()) return 0; | |
| 87 String16 dataString = toProtocolString(data.As<v8::String>()); | |
| 88 if (dataString.isEmpty()) return 0; | |
| 89 size_t commaPos = dataString.find(","); | |
| 90 if (commaPos == String16::kNotFound) return 0; | |
| 91 size_t commaPos2 = dataString.find(",", commaPos + 1); | |
| 92 if (commaPos2 == String16::kNotFound) return 0; | |
| 93 return dataString.substring(commaPos + 1, commaPos2 - commaPos - 1) | |
| 94 .toInteger(); | |
| 95 } | |
| 96 | |
| 97 // static | |
| 98 int V8Debugger::getGroupId(v8::Local<v8::Context> context) { | |
| 99 v8::Local<v8::Value> data = | |
| 100 context->GetEmbedderData(static_cast<int>(v8::Context::kDebugIdIndex)); | |
| 101 if (data.IsEmpty() || !data->IsString()) return 0; | |
| 102 String16 dataString = toProtocolString(data.As<v8::String>()); | |
| 103 if (dataString.isEmpty()) return 0; | |
| 104 size_t commaPos = dataString.find(","); | |
| 105 if (commaPos == String16::kNotFound) return 0; | |
| 106 return dataString.substring(0, commaPos).toInteger(); | |
| 107 } | |
| 108 | |
| 109 void V8Debugger::getCompiledScripts( | |
| 110 int contextGroupId, | |
| 111 std::vector<std::unique_ptr<V8DebuggerScript>>& result) { | |
| 112 v8::HandleScope scope(m_isolate); | |
| 113 v8::MicrotasksScope microtasks(m_isolate, | |
| 114 v8::MicrotasksScope::kDoNotRunMicrotasks); | |
| 115 v8::Local<v8::Context> context = debuggerContext(); | |
| 116 v8::Local<v8::Object> debuggerScript = m_debuggerScript.Get(m_isolate); | |
| 117 DCHECK(!debuggerScript->IsUndefined()); | |
| 118 v8::Local<v8::Function> getScriptsFunction = v8::Local<v8::Function>::Cast( | |
| 119 debuggerScript | |
| 120 ->Get(context, toV8StringInternalized(m_isolate, "getScripts")) | |
| 121 .ToLocalChecked()); | |
| 122 v8::Local<v8::Value> argv[] = {v8::Integer::New(m_isolate, contextGroupId)}; | |
| 123 v8::Local<v8::Value> value; | |
| 124 if (!getScriptsFunction->Call(context, debuggerScript, arraysize(argv), argv) | |
| 125 .ToLocal(&value)) | |
| 126 return; | |
| 127 DCHECK(value->IsArray()); | |
| 128 v8::Local<v8::Array> scriptsArray = v8::Local<v8::Array>::Cast(value); | |
| 129 result.reserve(scriptsArray->Length()); | |
| 130 for (unsigned i = 0; i < scriptsArray->Length(); ++i) { | |
| 131 v8::Local<v8::Object> scriptObject = v8::Local<v8::Object>::Cast( | |
| 132 scriptsArray->Get(context, v8::Integer::New(m_isolate, i)) | |
| 133 .ToLocalChecked()); | |
| 134 result.push_back(wrapUnique( | |
| 135 new V8DebuggerScript(context, scriptObject, inLiveEditScope))); | |
| 136 } | |
| 137 } | |
| 138 | |
| 139 String16 V8Debugger::setBreakpoint(const String16& sourceID, | |
| 140 const ScriptBreakpoint& scriptBreakpoint, | |
| 141 int* actualLineNumber, | |
| 142 int* actualColumnNumber) { | |
| 143 v8::HandleScope scope(m_isolate); | |
| 144 v8::Local<v8::Context> context = debuggerContext(); | |
| 145 v8::Context::Scope contextScope(context); | |
| 146 | |
| 147 v8::Local<v8::Object> info = v8::Object::New(m_isolate); | |
| 148 bool success = false; | |
| 149 success = info->Set(context, toV8StringInternalized(m_isolate, "sourceID"), | |
| 150 toV8String(m_isolate, sourceID)) | |
| 151 .FromMaybe(false); | |
| 152 DCHECK(success); | |
| 153 success = info->Set(context, toV8StringInternalized(m_isolate, "lineNumber"), | |
| 154 v8::Integer::New(m_isolate, scriptBreakpoint.lineNumber)) | |
| 155 .FromMaybe(false); | |
| 156 DCHECK(success); | |
| 157 success = | |
| 158 info->Set(context, toV8StringInternalized(m_isolate, "columnNumber"), | |
| 159 v8::Integer::New(m_isolate, scriptBreakpoint.columnNumber)) | |
| 160 .FromMaybe(false); | |
| 161 DCHECK(success); | |
| 162 success = info->Set(context, toV8StringInternalized(m_isolate, "condition"), | |
| 163 toV8String(m_isolate, scriptBreakpoint.condition)) | |
| 164 .FromMaybe(false); | |
| 165 DCHECK(success); | |
| 166 | |
| 167 v8::Local<v8::Function> setBreakpointFunction = v8::Local<v8::Function>::Cast( | |
| 168 m_debuggerScript.Get(m_isolate) | |
| 169 ->Get(context, toV8StringInternalized(m_isolate, "setBreakpoint")) | |
| 170 .ToLocalChecked()); | |
| 171 v8::Local<v8::Value> breakpointId = | |
| 172 v8::Debug::Call(debuggerContext(), setBreakpointFunction, info) | |
| 173 .ToLocalChecked(); | |
| 174 if (!breakpointId->IsString()) return ""; | |
| 175 *actualLineNumber = | |
| 176 info->Get(context, toV8StringInternalized(m_isolate, "lineNumber")) | |
| 177 .ToLocalChecked() | |
| 178 ->Int32Value(context) | |
| 179 .FromJust(); | |
| 180 *actualColumnNumber = | |
| 181 info->Get(context, toV8StringInternalized(m_isolate, "columnNumber")) | |
| 182 .ToLocalChecked() | |
| 183 ->Int32Value(context) | |
| 184 .FromJust(); | |
| 185 return toProtocolString(breakpointId.As<v8::String>()); | |
| 186 } | |
| 187 | |
| 188 void V8Debugger::removeBreakpoint(const String16& breakpointId) { | |
| 189 v8::HandleScope scope(m_isolate); | |
| 190 v8::Local<v8::Context> context = debuggerContext(); | |
| 191 v8::Context::Scope contextScope(context); | |
| 192 | |
| 193 v8::Local<v8::Object> info = v8::Object::New(m_isolate); | |
| 194 bool success = false; | |
| 195 success = | |
| 196 info->Set(context, toV8StringInternalized(m_isolate, "breakpointId"), | |
| 197 toV8String(m_isolate, breakpointId)) | |
| 198 .FromMaybe(false); | |
| 199 DCHECK(success); | |
| 200 | |
| 201 v8::Local<v8::Function> removeBreakpointFunction = | |
| 202 v8::Local<v8::Function>::Cast( | |
| 203 m_debuggerScript.Get(m_isolate) | |
| 204 ->Get(context, | |
| 205 toV8StringInternalized(m_isolate, "removeBreakpoint")) | |
| 206 .ToLocalChecked()); | |
| 207 v8::Debug::Call(debuggerContext(), removeBreakpointFunction, info) | |
| 208 .ToLocalChecked(); | |
| 209 } | |
| 210 | |
| 211 void V8Debugger::clearBreakpoints() { | |
| 212 v8::HandleScope scope(m_isolate); | |
| 213 v8::Local<v8::Context> context = debuggerContext(); | |
| 214 v8::Context::Scope contextScope(context); | |
| 215 | |
| 216 v8::Local<v8::Function> clearBreakpoints = v8::Local<v8::Function>::Cast( | |
| 217 m_debuggerScript.Get(m_isolate) | |
| 218 ->Get(context, toV8StringInternalized(m_isolate, "clearBreakpoints")) | |
| 219 .ToLocalChecked()); | |
| 220 v8::Debug::Call(debuggerContext(), clearBreakpoints).ToLocalChecked(); | |
| 221 } | |
| 222 | |
| 223 void V8Debugger::setBreakpointsActivated(bool activated) { | |
| 224 if (!enabled()) { | |
| 225 UNREACHABLE(); | |
| 226 return; | |
| 227 } | |
| 228 v8::HandleScope scope(m_isolate); | |
| 229 v8::Local<v8::Context> context = debuggerContext(); | |
| 230 v8::Context::Scope contextScope(context); | |
| 231 | |
| 232 v8::Local<v8::Object> info = v8::Object::New(m_isolate); | |
| 233 bool success = false; | |
| 234 success = info->Set(context, toV8StringInternalized(m_isolate, "enabled"), | |
| 235 v8::Boolean::New(m_isolate, activated)) | |
| 236 .FromMaybe(false); | |
| 237 DCHECK(success); | |
| 238 v8::Local<v8::Function> setBreakpointsActivated = | |
| 239 v8::Local<v8::Function>::Cast( | |
| 240 m_debuggerScript.Get(m_isolate) | |
| 241 ->Get(context, toV8StringInternalized(m_isolate, | |
| 242 "setBreakpointsActivated")) | |
| 243 .ToLocalChecked()); | |
| 244 v8::Debug::Call(debuggerContext(), setBreakpointsActivated, info) | |
| 245 .ToLocalChecked(); | |
| 246 | |
| 247 m_breakpointsActivated = activated; | |
| 248 } | |
| 249 | |
| 250 V8Debugger::PauseOnExceptionsState V8Debugger::getPauseOnExceptionsState() { | |
| 251 DCHECK(enabled()); | |
| 252 v8::HandleScope scope(m_isolate); | |
| 253 v8::Local<v8::Context> context = debuggerContext(); | |
| 254 v8::Context::Scope contextScope(context); | |
| 255 | |
| 256 v8::Local<v8::Value> argv[] = {v8::Undefined(m_isolate)}; | |
| 257 v8::Local<v8::Value> result = | |
| 258 callDebuggerMethod("pauseOnExceptionsState", 0, argv).ToLocalChecked(); | |
| 259 return static_cast<V8Debugger::PauseOnExceptionsState>( | |
| 260 result->Int32Value(context).FromJust()); | |
| 261 } | |
| 262 | |
| 263 void V8Debugger::setPauseOnExceptionsState( | |
| 264 PauseOnExceptionsState pauseOnExceptionsState) { | |
| 265 DCHECK(enabled()); | |
| 266 v8::HandleScope scope(m_isolate); | |
| 267 v8::Context::Scope contextScope(debuggerContext()); | |
| 268 | |
| 269 v8::Local<v8::Value> argv[] = { | |
| 270 v8::Int32::New(m_isolate, pauseOnExceptionsState)}; | |
| 271 callDebuggerMethod("setPauseOnExceptionsState", 1, argv); | |
| 272 } | |
| 273 | |
| 274 void V8Debugger::setPauseOnNextStatement(bool pause) { | |
| 275 if (m_runningNestedMessageLoop) return; | |
| 276 if (pause) | |
| 277 v8::Debug::DebugBreak(m_isolate); | |
| 278 else | |
| 279 v8::Debug::CancelDebugBreak(m_isolate); | |
| 280 } | |
| 281 | |
| 282 bool V8Debugger::canBreakProgram() { | |
| 283 if (!m_breakpointsActivated) return false; | |
| 284 return m_isolate->InContext(); | |
| 285 } | |
| 286 | |
| 287 void V8Debugger::breakProgram() { | |
| 288 if (isPaused()) { | |
| 289 DCHECK(!m_runningNestedMessageLoop); | |
| 290 v8::Local<v8::Value> exception; | |
| 291 v8::Local<v8::Array> hitBreakpoints; | |
| 292 handleProgramBreak(m_pausedContext, m_executionState, exception, | |
| 293 hitBreakpoints); | |
| 294 return; | |
| 295 } | |
| 296 | |
| 297 if (!canBreakProgram()) return; | |
| 298 | |
| 299 v8::HandleScope scope(m_isolate); | |
| 300 v8::Local<v8::Function> breakFunction; | |
| 301 if (!v8::Function::New(m_isolate->GetCurrentContext(), | |
| 302 &V8Debugger::breakProgramCallback, | |
| 303 v8::External::New(m_isolate, this), 0, | |
| 304 v8::ConstructorBehavior::kThrow) | |
| 305 .ToLocal(&breakFunction)) | |
| 306 return; | |
| 307 v8::Debug::Call(debuggerContext(), breakFunction).ToLocalChecked(); | |
| 308 } | |
| 309 | |
| 310 void V8Debugger::continueProgram() { | |
| 311 if (isPaused()) m_inspector->client()->quitMessageLoopOnPause(); | |
| 312 m_pausedContext.Clear(); | |
| 313 m_executionState.Clear(); | |
| 314 } | |
| 315 | |
| 316 void V8Debugger::stepIntoStatement() { | |
| 317 DCHECK(isPaused()); | |
| 318 DCHECK(!m_executionState.IsEmpty()); | |
| 319 v8::HandleScope handleScope(m_isolate); | |
| 320 v8::Local<v8::Value> argv[] = {m_executionState}; | |
| 321 callDebuggerMethod(stepIntoV8MethodName, 1, argv); | |
| 322 continueProgram(); | |
| 323 } | |
| 324 | |
| 325 void V8Debugger::stepOverStatement() { | |
| 326 DCHECK(isPaused()); | |
| 327 DCHECK(!m_executionState.IsEmpty()); | |
| 328 v8::HandleScope handleScope(m_isolate); | |
| 329 v8::Local<v8::Value> argv[] = {m_executionState}; | |
| 330 callDebuggerMethod("stepOverStatement", 1, argv); | |
| 331 continueProgram(); | |
| 332 } | |
| 333 | |
| 334 void V8Debugger::stepOutOfFunction() { | |
| 335 DCHECK(isPaused()); | |
| 336 DCHECK(!m_executionState.IsEmpty()); | |
| 337 v8::HandleScope handleScope(m_isolate); | |
| 338 v8::Local<v8::Value> argv[] = {m_executionState}; | |
| 339 callDebuggerMethod(stepOutV8MethodName, 1, argv); | |
| 340 continueProgram(); | |
| 341 } | |
| 342 | |
| 343 void V8Debugger::clearStepping() { | |
| 344 DCHECK(enabled()); | |
| 345 v8::HandleScope scope(m_isolate); | |
| 346 v8::Context::Scope contextScope(debuggerContext()); | |
| 347 | |
| 348 v8::Local<v8::Value> argv[] = {v8::Undefined(m_isolate)}; | |
| 349 callDebuggerMethod("clearStepping", 0, argv); | |
| 350 } | |
| 351 | |
| 352 bool V8Debugger::setScriptSource( | |
| 353 const String16& sourceID, v8::Local<v8::String> newSource, bool dryRun, | |
| 354 ErrorString* error, | |
| 355 Maybe<protocol::Runtime::ExceptionDetails>* exceptionDetails, | |
| 356 JavaScriptCallFrames* newCallFrames, Maybe<bool>* stackChanged) { | |
| 357 class EnableLiveEditScope { | |
| 358 public: | |
| 359 explicit EnableLiveEditScope(v8::Isolate* isolate) : m_isolate(isolate) { | |
| 360 v8::Debug::SetLiveEditEnabled(m_isolate, true); | |
| 361 inLiveEditScope = true; | |
| 362 } | |
| 363 ~EnableLiveEditScope() { | |
| 364 v8::Debug::SetLiveEditEnabled(m_isolate, false); | |
| 365 inLiveEditScope = false; | |
| 366 } | |
| 367 | |
| 368 private: | |
| 369 v8::Isolate* m_isolate; | |
| 370 }; | |
| 371 | |
| 372 DCHECK(enabled()); | |
| 373 v8::HandleScope scope(m_isolate); | |
| 374 | |
| 375 std::unique_ptr<v8::Context::Scope> contextScope; | |
| 376 if (!isPaused()) | |
| 377 contextScope = wrapUnique(new v8::Context::Scope(debuggerContext())); | |
| 378 | |
| 379 v8::Local<v8::Value> argv[] = {toV8String(m_isolate, sourceID), newSource, | |
| 380 v8Boolean(dryRun, m_isolate)}; | |
| 381 | |
| 382 v8::Local<v8::Value> v8result; | |
| 383 { | |
| 384 EnableLiveEditScope enableLiveEditScope(m_isolate); | |
| 385 v8::TryCatch tryCatch(m_isolate); | |
| 386 tryCatch.SetVerbose(false); | |
| 387 v8::MaybeLocal<v8::Value> maybeResult = | |
| 388 callDebuggerMethod("liveEditScriptSource", 3, argv); | |
| 389 if (tryCatch.HasCaught()) { | |
| 390 v8::Local<v8::Message> message = tryCatch.Message(); | |
| 391 if (!message.IsEmpty()) | |
| 392 *error = toProtocolStringWithTypeCheck(message->Get()); | |
| 393 else | |
| 394 *error = "Unknown error."; | |
| 395 return false; | |
| 396 } | |
| 397 v8result = maybeResult.ToLocalChecked(); | |
| 398 } | |
| 399 DCHECK(!v8result.IsEmpty()); | |
| 400 v8::Local<v8::Context> context = m_isolate->GetCurrentContext(); | |
| 401 v8::Local<v8::Object> resultTuple = | |
| 402 v8result->ToObject(context).ToLocalChecked(); | |
| 403 int code = static_cast<int>(resultTuple->Get(context, 0) | |
| 404 .ToLocalChecked() | |
| 405 ->ToInteger(context) | |
| 406 .ToLocalChecked() | |
| 407 ->Value()); | |
| 408 switch (code) { | |
| 409 case 0: { | |
| 410 *stackChanged = resultTuple->Get(context, 1) | |
| 411 .ToLocalChecked() | |
| 412 ->BooleanValue(context) | |
| 413 .FromJust(); | |
| 414 // Call stack may have changed after if the edited function was on the | |
| 415 // stack. | |
| 416 if (!dryRun && isPaused()) { | |
| 417 JavaScriptCallFrames frames = currentCallFrames(); | |
| 418 newCallFrames->swap(frames); | |
| 419 } | |
| 420 return true; | |
| 421 } | |
| 422 // Compile error. | |
| 423 case 1: { | |
| 424 *exceptionDetails = | |
| 425 protocol::Runtime::ExceptionDetails::create() | |
| 426 .setExceptionId(m_inspector->nextExceptionId()) | |
| 427 .setText(toProtocolStringWithTypeCheck( | |
| 428 resultTuple->Get(context, 2).ToLocalChecked())) | |
| 429 .setLineNumber(resultTuple->Get(context, 3) | |
| 430 .ToLocalChecked() | |
| 431 ->ToInteger(context) | |
| 432 .ToLocalChecked() | |
| 433 ->Value() - | |
| 434 1) | |
| 435 .setColumnNumber(resultTuple->Get(context, 4) | |
| 436 .ToLocalChecked() | |
| 437 ->ToInteger(context) | |
| 438 .ToLocalChecked() | |
| 439 ->Value() - | |
| 440 1) | |
| 441 .build(); | |
| 442 return false; | |
| 443 } | |
| 444 } | |
| 445 *error = "Unknown error."; | |
| 446 return false; | |
| 447 } | |
| 448 | |
| 449 JavaScriptCallFrames V8Debugger::currentCallFrames(int limit) { | |
| 450 if (!m_isolate->InContext()) return JavaScriptCallFrames(); | |
| 451 v8::Local<v8::Value> currentCallFramesV8; | |
| 452 if (m_executionState.IsEmpty()) { | |
| 453 v8::Local<v8::Function> currentCallFramesFunction = | |
| 454 v8::Local<v8::Function>::Cast( | |
| 455 m_debuggerScript.Get(m_isolate) | |
| 456 ->Get(debuggerContext(), | |
| 457 toV8StringInternalized(m_isolate, "currentCallFrames")) | |
| 458 .ToLocalChecked()); | |
| 459 currentCallFramesV8 = | |
| 460 v8::Debug::Call(debuggerContext(), currentCallFramesFunction, | |
| 461 v8::Integer::New(m_isolate, limit)) | |
| 462 .ToLocalChecked(); | |
| 463 } else { | |
| 464 v8::Local<v8::Value> argv[] = {m_executionState, | |
| 465 v8::Integer::New(m_isolate, limit)}; | |
| 466 currentCallFramesV8 = | |
| 467 callDebuggerMethod("currentCallFrames", arraysize(argv), argv) | |
| 468 .ToLocalChecked(); | |
| 469 } | |
| 470 DCHECK(!currentCallFramesV8.IsEmpty()); | |
| 471 if (!currentCallFramesV8->IsArray()) return JavaScriptCallFrames(); | |
| 472 v8::Local<v8::Array> callFramesArray = currentCallFramesV8.As<v8::Array>(); | |
| 473 JavaScriptCallFrames callFrames; | |
| 474 for (size_t i = 0; i < callFramesArray->Length(); ++i) { | |
| 475 v8::Local<v8::Value> callFrameValue; | |
| 476 if (!callFramesArray->Get(debuggerContext(), i).ToLocal(&callFrameValue)) | |
| 477 return JavaScriptCallFrames(); | |
| 478 if (!callFrameValue->IsObject()) return JavaScriptCallFrames(); | |
| 479 v8::Local<v8::Object> callFrameObject = callFrameValue.As<v8::Object>(); | |
| 480 callFrames.push_back(JavaScriptCallFrame::create( | |
| 481 debuggerContext(), v8::Local<v8::Object>::Cast(callFrameObject))); | |
| 482 } | |
| 483 return callFrames; | |
| 484 } | |
| 485 | |
| 486 static V8Debugger* toV8Debugger(v8::Local<v8::Value> data) { | |
| 487 void* p = v8::Local<v8::External>::Cast(data)->Value(); | |
| 488 return static_cast<V8Debugger*>(p); | |
| 489 } | |
| 490 | |
| 491 void V8Debugger::breakProgramCallback( | |
| 492 const v8::FunctionCallbackInfo<v8::Value>& info) { | |
| 493 DCHECK_EQ(info.Length(), 2); | |
| 494 V8Debugger* thisPtr = toV8Debugger(info.Data()); | |
| 495 if (!thisPtr->enabled()) return; | |
| 496 v8::Local<v8::Context> pausedContext = | |
| 497 thisPtr->m_isolate->GetCurrentContext(); | |
| 498 v8::Local<v8::Value> exception; | |
| 499 v8::Local<v8::Array> hitBreakpoints; | |
| 500 thisPtr->handleProgramBreak(pausedContext, | |
| 501 v8::Local<v8::Object>::Cast(info[0]), exception, | |
| 502 hitBreakpoints); | |
| 503 } | |
| 504 | |
| 505 void V8Debugger::handleProgramBreak(v8::Local<v8::Context> pausedContext, | |
| 506 v8::Local<v8::Object> executionState, | |
| 507 v8::Local<v8::Value> exception, | |
| 508 v8::Local<v8::Array> hitBreakpointNumbers, | |
| 509 bool isPromiseRejection) { | |
| 510 // Don't allow nested breaks. | |
| 511 if (m_runningNestedMessageLoop) return; | |
| 512 | |
| 513 V8DebuggerAgentImpl* agent = | |
| 514 m_inspector->enabledDebuggerAgentForGroup(getGroupId(pausedContext)); | |
| 515 if (!agent) return; | |
| 516 | |
| 517 std::vector<String16> breakpointIds; | |
| 518 if (!hitBreakpointNumbers.IsEmpty()) { | |
| 519 breakpointIds.reserve(hitBreakpointNumbers->Length()); | |
| 520 for (size_t i = 0; i < hitBreakpointNumbers->Length(); i++) { | |
| 521 v8::Local<v8::Value> hitBreakpointNumber = | |
| 522 hitBreakpointNumbers->Get(debuggerContext(), i).ToLocalChecked(); | |
| 523 DCHECK(hitBreakpointNumber->IsInt32()); | |
| 524 breakpointIds.push_back(String16::fromInteger( | |
| 525 hitBreakpointNumber->Int32Value(debuggerContext()).FromJust())); | |
| 526 } | |
| 527 } | |
| 528 | |
| 529 m_pausedContext = pausedContext; | |
| 530 m_executionState = executionState; | |
| 531 V8DebuggerAgentImpl::SkipPauseRequest result = agent->didPause( | |
| 532 pausedContext, exception, breakpointIds, isPromiseRejection); | |
| 533 if (result == V8DebuggerAgentImpl::RequestNoSkip) { | |
| 534 m_runningNestedMessageLoop = true; | |
| 535 int groupId = getGroupId(pausedContext); | |
| 536 DCHECK(groupId); | |
| 537 m_inspector->client()->runMessageLoopOnPause(groupId); | |
| 538 // The agent may have been removed in the nested loop. | |
| 539 agent = | |
| 540 m_inspector->enabledDebuggerAgentForGroup(getGroupId(pausedContext)); | |
| 541 if (agent) agent->didContinue(); | |
| 542 m_runningNestedMessageLoop = false; | |
| 543 } | |
| 544 m_pausedContext.Clear(); | |
| 545 m_executionState.Clear(); | |
| 546 | |
| 547 if (result == V8DebuggerAgentImpl::RequestStepFrame) { | |
| 548 v8::Local<v8::Value> argv[] = {executionState}; | |
| 549 callDebuggerMethod("stepFrameStatement", 1, argv); | |
| 550 } else if (result == V8DebuggerAgentImpl::RequestStepInto) { | |
| 551 v8::Local<v8::Value> argv[] = {executionState}; | |
| 552 callDebuggerMethod(stepIntoV8MethodName, 1, argv); | |
| 553 } else if (result == V8DebuggerAgentImpl::RequestStepOut) { | |
| 554 v8::Local<v8::Value> argv[] = {executionState}; | |
| 555 callDebuggerMethod(stepOutV8MethodName, 1, argv); | |
| 556 } | |
| 557 } | |
| 558 | |
| 559 void V8Debugger::v8DebugEventCallback( | |
| 560 const v8::Debug::EventDetails& eventDetails) { | |
| 561 V8Debugger* thisPtr = toV8Debugger(eventDetails.GetCallbackData()); | |
| 562 thisPtr->handleV8DebugEvent(eventDetails); | |
| 563 } | |
| 564 | |
| 565 v8::Local<v8::Value> V8Debugger::callInternalGetterFunction( | |
| 566 v8::Local<v8::Object> object, const char* functionName) { | |
| 567 v8::MicrotasksScope microtasks(m_isolate, | |
| 568 v8::MicrotasksScope::kDoNotRunMicrotasks); | |
| 569 v8::Local<v8::Value> getterValue = | |
| 570 object | |
| 571 ->Get(m_isolate->GetCurrentContext(), | |
| 572 toV8StringInternalized(m_isolate, functionName)) | |
| 573 .ToLocalChecked(); | |
| 574 DCHECK(!getterValue.IsEmpty() && getterValue->IsFunction()); | |
| 575 return v8::Local<v8::Function>::Cast(getterValue) | |
| 576 ->Call(m_isolate->GetCurrentContext(), object, 0, 0) | |
| 577 .ToLocalChecked(); | |
| 578 } | |
| 579 | |
| 580 void V8Debugger::handleV8DebugEvent( | |
| 581 const v8::Debug::EventDetails& eventDetails) { | |
| 582 if (!enabled()) return; | |
| 583 v8::DebugEvent event = eventDetails.GetEvent(); | |
| 584 if (event != v8::AsyncTaskEvent && event != v8::Break && | |
| 585 event != v8::Exception && event != v8::AfterCompile && | |
| 586 event != v8::BeforeCompile && event != v8::CompileError) | |
| 587 return; | |
| 588 | |
| 589 v8::Local<v8::Context> eventContext = eventDetails.GetEventContext(); | |
| 590 DCHECK(!eventContext.IsEmpty()); | |
| 591 | |
| 592 if (event == v8::AsyncTaskEvent) { | |
| 593 v8::HandleScope scope(m_isolate); | |
| 594 handleV8AsyncTaskEvent(eventContext, eventDetails.GetExecutionState(), | |
| 595 eventDetails.GetEventData()); | |
| 596 return; | |
| 597 } | |
| 598 | |
| 599 V8DebuggerAgentImpl* agent = | |
| 600 m_inspector->enabledDebuggerAgentForGroup(getGroupId(eventContext)); | |
| 601 if (agent) { | |
| 602 v8::HandleScope scope(m_isolate); | |
| 603 if (m_ignoreScriptParsedEventsCounter == 0 && | |
| 604 (event == v8::AfterCompile || event == v8::CompileError)) { | |
| 605 v8::Context::Scope contextScope(debuggerContext()); | |
| 606 v8::Local<v8::Value> argv[] = {eventDetails.GetEventData()}; | |
| 607 v8::Local<v8::Value> value = | |
| 608 callDebuggerMethod("getAfterCompileScript", 1, argv).ToLocalChecked(); | |
| 609 if (value->IsNull()) return; | |
| 610 DCHECK(value->IsObject()); | |
| 611 v8::Local<v8::Object> scriptObject = v8::Local<v8::Object>::Cast(value); | |
| 612 agent->didParseSource( | |
| 613 wrapUnique(new V8DebuggerScript(debuggerContext(), scriptObject, | |
| 614 inLiveEditScope)), | |
| 615 event == v8::AfterCompile); | |
| 616 } else if (event == v8::Exception) { | |
| 617 v8::Local<v8::Object> eventData = eventDetails.GetEventData(); | |
| 618 v8::Local<v8::Value> exception = | |
| 619 callInternalGetterFunction(eventData, "exception"); | |
| 620 v8::Local<v8::Value> promise = | |
| 621 callInternalGetterFunction(eventData, "promise"); | |
| 622 bool isPromiseRejection = !promise.IsEmpty() && promise->IsObject(); | |
| 623 handleProgramBreak(eventContext, eventDetails.GetExecutionState(), | |
| 624 exception, v8::Local<v8::Array>(), isPromiseRejection); | |
| 625 } else if (event == v8::Break) { | |
| 626 v8::Local<v8::Value> argv[] = {eventDetails.GetEventData()}; | |
| 627 v8::Local<v8::Value> hitBreakpoints = | |
| 628 callDebuggerMethod("getBreakpointNumbers", 1, argv).ToLocalChecked(); | |
| 629 DCHECK(hitBreakpoints->IsArray()); | |
| 630 handleProgramBreak(eventContext, eventDetails.GetExecutionState(), | |
| 631 v8::Local<v8::Value>(), | |
| 632 hitBreakpoints.As<v8::Array>()); | |
| 633 } | |
| 634 } | |
| 635 } | |
| 636 | |
| 637 void V8Debugger::handleV8AsyncTaskEvent(v8::Local<v8::Context> context, | |
| 638 v8::Local<v8::Object> executionState, | |
| 639 v8::Local<v8::Object> eventData) { | |
| 640 if (!m_maxAsyncCallStackDepth) return; | |
| 641 | |
| 642 String16 type = toProtocolStringWithTypeCheck( | |
| 643 callInternalGetterFunction(eventData, "type")); | |
| 644 String16 name = toProtocolStringWithTypeCheck( | |
| 645 callInternalGetterFunction(eventData, "name")); | |
| 646 int id = callInternalGetterFunction(eventData, "id") | |
| 647 ->ToInteger(context) | |
| 648 .ToLocalChecked() | |
| 649 ->Value(); | |
| 650 // Async task events from Promises are given misaligned pointers to prevent | |
| 651 // from overlapping with other Blink task identifiers. There is a single | |
| 652 // namespace of such ids, managed by src/js/promise.js. | |
| 653 void* ptr = reinterpret_cast<void*>(id * 2 + 1); | |
| 654 if (type == v8AsyncTaskEventEnqueue) | |
| 655 asyncTaskScheduled(name, ptr, false); | |
| 656 else if (type == v8AsyncTaskEventWillHandle) | |
| 657 asyncTaskStarted(ptr); | |
| 658 else if (type == v8AsyncTaskEventDidHandle) | |
| 659 asyncTaskFinished(ptr); | |
| 660 else | |
| 661 UNREACHABLE(); | |
| 662 } | |
| 663 | |
| 664 V8StackTraceImpl* V8Debugger::currentAsyncCallChain() { | |
| 665 if (!m_currentStacks.size()) return nullptr; | |
| 666 return m_currentStacks.back().get(); | |
| 667 } | |
| 668 | |
| 669 void V8Debugger::compileDebuggerScript() { | |
| 670 if (!m_debuggerScript.IsEmpty()) { | |
| 671 UNREACHABLE(); | |
| 672 return; | |
| 673 } | |
| 674 | |
| 675 v8::HandleScope scope(m_isolate); | |
| 676 v8::Context::Scope contextScope(debuggerContext()); | |
| 677 | |
| 678 v8::Local<v8::String> scriptValue = | |
| 679 v8::String::NewFromUtf8(m_isolate, DebuggerScript_js, | |
| 680 v8::NewStringType::kInternalized, | |
| 681 sizeof(DebuggerScript_js)) | |
| 682 .ToLocalChecked(); | |
| 683 v8::Local<v8::Value> value; | |
| 684 if (!m_inspector->compileAndRunInternalScript(debuggerContext(), scriptValue) | |
| 685 .ToLocal(&value)) { | |
| 686 UNREACHABLE(); | |
| 687 return; | |
| 688 } | |
| 689 DCHECK(value->IsObject()); | |
| 690 m_debuggerScript.Reset(m_isolate, value.As<v8::Object>()); | |
| 691 } | |
| 692 | |
| 693 v8::Local<v8::Context> V8Debugger::debuggerContext() const { | |
| 694 DCHECK(!m_debuggerContext.IsEmpty()); | |
| 695 return m_debuggerContext.Get(m_isolate); | |
| 696 } | |
| 697 | |
| 698 v8::MaybeLocal<v8::Value> V8Debugger::functionScopes( | |
| 699 v8::Local<v8::Context> context, v8::Local<v8::Function> function) { | |
| 700 if (!enabled()) { | |
| 701 UNREACHABLE(); | |
| 702 return v8::Local<v8::Value>::New(m_isolate, v8::Undefined(m_isolate)); | |
| 703 } | |
| 704 v8::Local<v8::Value> argv[] = {function}; | |
| 705 v8::Local<v8::Value> scopesValue; | |
| 706 if (!callDebuggerMethod("getFunctionScopes", 1, argv).ToLocal(&scopesValue)) | |
| 707 return v8::MaybeLocal<v8::Value>(); | |
| 708 v8::Local<v8::Value> copied; | |
| 709 if (!copyValueFromDebuggerContext(m_isolate, debuggerContext(), context, | |
| 710 scopesValue) | |
| 711 .ToLocal(&copied) || | |
| 712 !copied->IsArray()) | |
| 713 return v8::MaybeLocal<v8::Value>(); | |
| 714 if (!markAsInternal(context, v8::Local<v8::Array>::Cast(copied), | |
| 715 V8InternalValueType::kScopeList)) | |
| 716 return v8::MaybeLocal<v8::Value>(); | |
| 717 if (!markArrayEntriesAsInternal(context, v8::Local<v8::Array>::Cast(copied), | |
| 718 V8InternalValueType::kScope)) | |
| 719 return v8::MaybeLocal<v8::Value>(); | |
| 720 return copied; | |
| 721 } | |
| 722 | |
| 723 v8::MaybeLocal<v8::Array> V8Debugger::internalProperties( | |
| 724 v8::Local<v8::Context> context, v8::Local<v8::Value> value) { | |
| 725 v8::Local<v8::Array> properties; | |
| 726 if (!v8::Debug::GetInternalProperties(m_isolate, value).ToLocal(&properties)) | |
| 727 return v8::MaybeLocal<v8::Array>(); | |
| 728 if (value->IsFunction()) { | |
| 729 v8::Local<v8::Function> function = value.As<v8::Function>(); | |
| 730 v8::Local<v8::Value> location = functionLocation(context, function); | |
| 731 if (location->IsObject()) { | |
| 732 createDataProperty( | |
| 733 context, properties, properties->Length(), | |
| 734 toV8StringInternalized(m_isolate, "[[FunctionLocation]]")); | |
| 735 createDataProperty(context, properties, properties->Length(), location); | |
| 736 } | |
| 737 if (function->IsGeneratorFunction()) { | |
| 738 createDataProperty(context, properties, properties->Length(), | |
| 739 toV8StringInternalized(m_isolate, "[[IsGenerator]]")); | |
| 740 createDataProperty(context, properties, properties->Length(), | |
| 741 v8::True(m_isolate)); | |
| 742 } | |
| 743 } | |
| 744 if (!enabled()) return properties; | |
| 745 if (value->IsMap() || value->IsWeakMap() || value->IsSet() || | |
| 746 value->IsWeakSet() || value->IsSetIterator() || value->IsMapIterator()) { | |
| 747 v8::Local<v8::Value> entries = | |
| 748 collectionEntries(context, v8::Local<v8::Object>::Cast(value)); | |
| 749 if (entries->IsArray()) { | |
| 750 createDataProperty(context, properties, properties->Length(), | |
| 751 toV8StringInternalized(m_isolate, "[[Entries]]")); | |
| 752 createDataProperty(context, properties, properties->Length(), entries); | |
| 753 } | |
| 754 } | |
| 755 if (value->IsGeneratorObject()) { | |
| 756 v8::Local<v8::Value> location = | |
| 757 generatorObjectLocation(context, v8::Local<v8::Object>::Cast(value)); | |
| 758 if (location->IsObject()) { | |
| 759 createDataProperty( | |
| 760 context, properties, properties->Length(), | |
| 761 toV8StringInternalized(m_isolate, "[[GeneratorLocation]]")); | |
| 762 createDataProperty(context, properties, properties->Length(), location); | |
| 763 } | |
| 764 } | |
| 765 if (value->IsFunction()) { | |
| 766 v8::Local<v8::Function> function = value.As<v8::Function>(); | |
| 767 v8::Local<v8::Value> boundFunction = function->GetBoundFunction(); | |
| 768 v8::Local<v8::Value> scopes; | |
| 769 if (boundFunction->IsUndefined() && | |
| 770 functionScopes(context, function).ToLocal(&scopes)) { | |
| 771 createDataProperty(context, properties, properties->Length(), | |
| 772 toV8StringInternalized(m_isolate, "[[Scopes]]")); | |
| 773 createDataProperty(context, properties, properties->Length(), scopes); | |
| 774 } | |
| 775 } | |
| 776 return properties; | |
| 777 } | |
| 778 | |
| 779 v8::Local<v8::Value> V8Debugger::collectionEntries( | |
| 780 v8::Local<v8::Context> context, v8::Local<v8::Object> object) { | |
| 781 if (!enabled()) { | |
| 782 UNREACHABLE(); | |
| 783 return v8::Undefined(m_isolate); | |
| 784 } | |
| 785 v8::Local<v8::Value> argv[] = {object}; | |
| 786 v8::Local<v8::Value> entriesValue = | |
| 787 callDebuggerMethod("getCollectionEntries", 1, argv).ToLocalChecked(); | |
| 788 v8::Local<v8::Value> copied; | |
| 789 if (!copyValueFromDebuggerContext(m_isolate, debuggerContext(), context, | |
| 790 entriesValue) | |
| 791 .ToLocal(&copied) || | |
| 792 !copied->IsArray()) | |
| 793 return v8::Undefined(m_isolate); | |
| 794 if (!markArrayEntriesAsInternal(context, v8::Local<v8::Array>::Cast(copied), | |
| 795 V8InternalValueType::kEntry)) | |
| 796 return v8::Undefined(m_isolate); | |
| 797 return copied; | |
| 798 } | |
| 799 | |
| 800 v8::Local<v8::Value> V8Debugger::generatorObjectLocation( | |
| 801 v8::Local<v8::Context> context, v8::Local<v8::Object> object) { | |
| 802 if (!enabled()) { | |
| 803 UNREACHABLE(); | |
| 804 return v8::Null(m_isolate); | |
| 805 } | |
| 806 v8::Local<v8::Value> argv[] = {object}; | |
| 807 v8::Local<v8::Value> location = | |
| 808 callDebuggerMethod("getGeneratorObjectLocation", 1, argv) | |
| 809 .ToLocalChecked(); | |
| 810 v8::Local<v8::Value> copied; | |
| 811 if (!copyValueFromDebuggerContext(m_isolate, debuggerContext(), context, | |
| 812 location) | |
| 813 .ToLocal(&copied) || | |
| 814 !copied->IsObject()) | |
| 815 return v8::Null(m_isolate); | |
| 816 if (!markAsInternal(context, v8::Local<v8::Object>::Cast(copied), | |
| 817 V8InternalValueType::kLocation)) | |
| 818 return v8::Null(m_isolate); | |
| 819 return copied; | |
| 820 } | |
| 821 | |
| 822 v8::Local<v8::Value> V8Debugger::functionLocation( | |
| 823 v8::Local<v8::Context> context, v8::Local<v8::Function> function) { | |
| 824 int scriptId = function->ScriptId(); | |
| 825 if (scriptId == v8::UnboundScript::kNoScriptId) return v8::Null(m_isolate); | |
| 826 int lineNumber = function->GetScriptLineNumber(); | |
| 827 int columnNumber = function->GetScriptColumnNumber(); | |
| 828 if (lineNumber == v8::Function::kLineOffsetNotFound || | |
| 829 columnNumber == v8::Function::kLineOffsetNotFound) | |
| 830 return v8::Null(m_isolate); | |
| 831 v8::Local<v8::Object> location = v8::Object::New(m_isolate); | |
| 832 if (!location->SetPrototype(context, v8::Null(m_isolate)).FromMaybe(false)) | |
| 833 return v8::Null(m_isolate); | |
| 834 if (!createDataProperty( | |
| 835 context, location, toV8StringInternalized(m_isolate, "scriptId"), | |
| 836 toV8String(m_isolate, String16::fromInteger(scriptId))) | |
| 837 .FromMaybe(false)) | |
| 838 return v8::Null(m_isolate); | |
| 839 if (!createDataProperty(context, location, | |
| 840 toV8StringInternalized(m_isolate, "lineNumber"), | |
| 841 v8::Integer::New(m_isolate, lineNumber)) | |
| 842 .FromMaybe(false)) | |
| 843 return v8::Null(m_isolate); | |
| 844 if (!createDataProperty(context, location, | |
| 845 toV8StringInternalized(m_isolate, "columnNumber"), | |
| 846 v8::Integer::New(m_isolate, columnNumber)) | |
| 847 .FromMaybe(false)) | |
| 848 return v8::Null(m_isolate); | |
| 849 if (!markAsInternal(context, location, V8InternalValueType::kLocation)) | |
| 850 return v8::Null(m_isolate); | |
| 851 return location; | |
| 852 } | |
| 853 | |
| 854 bool V8Debugger::isPaused() { return !m_pausedContext.IsEmpty(); } | |
| 855 | |
| 856 std::unique_ptr<V8StackTraceImpl> V8Debugger::createStackTrace( | |
| 857 v8::Local<v8::StackTrace> stackTrace) { | |
| 858 int contextGroupId = | |
| 859 m_isolate->InContext() ? getGroupId(m_isolate->GetCurrentContext()) : 0; | |
| 860 return V8StackTraceImpl::create(this, contextGroupId, stackTrace, | |
| 861 V8StackTraceImpl::maxCallStackSizeToCapture); | |
| 862 } | |
| 863 | |
| 864 int V8Debugger::markContext(const V8ContextInfo& info) { | |
| 865 DCHECK(info.context->GetIsolate() == m_isolate); | |
| 866 int contextId = ++m_lastContextId; | |
| 867 String16 debugData = String16::fromInteger(info.contextGroupId) + "," + | |
| 868 String16::fromInteger(contextId) + "," + | |
| 869 toString16(info.auxData); | |
| 870 v8::Context::Scope contextScope(info.context); | |
| 871 info.context->SetEmbedderData(static_cast<int>(v8::Context::kDebugIdIndex), | |
| 872 toV8String(m_isolate, debugData)); | |
| 873 return contextId; | |
| 874 } | |
| 875 | |
| 876 void V8Debugger::setAsyncCallStackDepth(V8DebuggerAgentImpl* agent, int depth) { | |
| 877 if (depth <= 0) | |
| 878 m_maxAsyncCallStackDepthMap.erase(agent); | |
| 879 else | |
| 880 m_maxAsyncCallStackDepthMap[agent] = depth; | |
| 881 | |
| 882 int maxAsyncCallStackDepth = 0; | |
| 883 for (const auto& pair : m_maxAsyncCallStackDepthMap) { | |
| 884 if (pair.second > maxAsyncCallStackDepth) | |
| 885 maxAsyncCallStackDepth = pair.second; | |
| 886 } | |
| 887 | |
| 888 if (m_maxAsyncCallStackDepth == maxAsyncCallStackDepth) return; | |
| 889 m_maxAsyncCallStackDepth = maxAsyncCallStackDepth; | |
| 890 if (!maxAsyncCallStackDepth) allAsyncTasksCanceled(); | |
| 891 } | |
| 892 | |
| 893 void V8Debugger::asyncTaskScheduled(const StringView& taskName, void* task, | |
| 894 bool recurring) { | |
| 895 if (!m_maxAsyncCallStackDepth) return; | |
| 896 asyncTaskScheduled(toString16(taskName), task, recurring); | |
| 897 } | |
| 898 | |
| 899 void V8Debugger::asyncTaskScheduled(const String16& taskName, void* task, | |
| 900 bool recurring) { | |
| 901 if (!m_maxAsyncCallStackDepth) return; | |
| 902 v8::HandleScope scope(m_isolate); | |
| 903 int contextGroupId = | |
| 904 m_isolate->InContext() ? getGroupId(m_isolate->GetCurrentContext()) : 0; | |
| 905 std::unique_ptr<V8StackTraceImpl> chain = V8StackTraceImpl::capture( | |
| 906 this, contextGroupId, V8StackTraceImpl::maxCallStackSizeToCapture, | |
| 907 taskName); | |
| 908 if (chain) { | |
| 909 m_asyncTaskStacks[task] = std::move(chain); | |
| 910 if (recurring) m_recurringTasks.insert(task); | |
| 911 } | |
| 912 } | |
| 913 | |
| 914 void V8Debugger::asyncTaskCanceled(void* task) { | |
| 915 if (!m_maxAsyncCallStackDepth) return; | |
| 916 m_asyncTaskStacks.erase(task); | |
| 917 m_recurringTasks.erase(task); | |
| 918 } | |
| 919 | |
| 920 void V8Debugger::asyncTaskStarted(void* task) { | |
| 921 if (!m_maxAsyncCallStackDepth) return; | |
| 922 m_currentTasks.push_back(task); | |
| 923 AsyncTaskToStackTrace::iterator stackIt = m_asyncTaskStacks.find(task); | |
| 924 // Needs to support following order of events: | |
| 925 // - asyncTaskScheduled | |
| 926 // <-- attached here --> | |
| 927 // - asyncTaskStarted | |
| 928 // - asyncTaskCanceled <-- canceled before finished | |
| 929 // <-- async stack requested here --> | |
| 930 // - asyncTaskFinished | |
| 931 std::unique_ptr<V8StackTraceImpl> stack; | |
| 932 if (stackIt != m_asyncTaskStacks.end() && stackIt->second) | |
| 933 stack = stackIt->second->cloneImpl(); | |
| 934 m_currentStacks.push_back(std::move(stack)); | |
| 935 } | |
| 936 | |
| 937 void V8Debugger::asyncTaskFinished(void* task) { | |
| 938 if (!m_maxAsyncCallStackDepth) return; | |
| 939 // We could start instrumenting half way and the stack is empty. | |
| 940 if (!m_currentStacks.size()) return; | |
| 941 | |
| 942 DCHECK(m_currentTasks.back() == task); | |
| 943 m_currentTasks.pop_back(); | |
| 944 | |
| 945 m_currentStacks.pop_back(); | |
| 946 if (m_recurringTasks.find(task) == m_recurringTasks.end()) | |
| 947 m_asyncTaskStacks.erase(task); | |
| 948 } | |
| 949 | |
| 950 void V8Debugger::allAsyncTasksCanceled() { | |
| 951 m_asyncTaskStacks.clear(); | |
| 952 m_recurringTasks.clear(); | |
| 953 m_currentStacks.clear(); | |
| 954 m_currentTasks.clear(); | |
| 955 } | |
| 956 | |
| 957 void V8Debugger::muteScriptParsedEvents() { | |
| 958 ++m_ignoreScriptParsedEventsCounter; | |
| 959 } | |
| 960 | |
| 961 void V8Debugger::unmuteScriptParsedEvents() { | |
| 962 --m_ignoreScriptParsedEventsCounter; | |
| 963 DCHECK_GE(m_ignoreScriptParsedEventsCounter, 0); | |
| 964 } | |
| 965 | |
| 966 std::unique_ptr<V8StackTraceImpl> V8Debugger::captureStackTrace( | |
| 967 bool fullStack) { | |
| 968 if (!m_isolate->InContext()) return nullptr; | |
| 969 | |
| 970 v8::HandleScope handles(m_isolate); | |
| 971 int contextGroupId = getGroupId(m_isolate->GetCurrentContext()); | |
| 972 if (!contextGroupId) return nullptr; | |
| 973 | |
| 974 size_t stackSize = | |
| 975 fullStack ? V8StackTraceImpl::maxCallStackSizeToCapture : 1; | |
| 976 if (m_inspector->enabledRuntimeAgentForGroup(contextGroupId)) | |
| 977 stackSize = V8StackTraceImpl::maxCallStackSizeToCapture; | |
| 978 | |
| 979 return V8StackTraceImpl::capture(this, contextGroupId, stackSize); | |
| 980 } | |
| 981 | |
| 982 } // namespace v8_inspector | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2338413003:
[inspector] change implementation file extension from cpp to cc (Closed)
