third_party/WebKit/Source/platform/v8_inspector/V8Debugger.cpp - Issue 2295913003: [DevTools] Switch from platform/v8_inspector to v8/v8-inspector.h.

Unified Diff: third_party/WebKit/Source/platform/v8_inspector/V8Debugger.cpp

Issue 2295913003: [DevTools] Switch from platform/v8_inspector to v8/v8-inspector.h. (Closed)

Patch Set: rebase Created 4 years, 3 months ago

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Index: third_party/WebKit/Source/platform/v8_inspector/V8Debugger.cpp

diff --git a/third_party/WebKit/Source/platform/v8_inspector/V8Debugger.cpp b/third_party/WebKit/Source/platform/v8_inspector/V8Debugger.cpp

deleted file mode 100644

index 1ec74cb2f611eaed3ea3176cde12c7d02cae0013..0000000000000000000000000000000000000000

--- a/third_party/WebKit/Source/platform/v8_inspector/V8Debugger.cpp

+++ /dev/null

@@ -1,847 +0,0 @@

-// Use of this source code is governed by a BSD-style license that can be

-// found in the LICENSE file.

-#include "platform/v8_inspector/V8Debugger.h"

-#include "platform/v8_inspector/DebuggerScript.h"

-#include "platform/v8_inspector/ScriptBreakpoint.h"

-#include "platform/v8_inspector/StringUtil.h"

-#include "platform/v8_inspector/V8Compat.h"

-#include "platform/v8_inspector/V8DebuggerAgentImpl.h"

-#include "platform/v8_inspector/V8InspectorImpl.h"

-#include "platform/v8_inspector/V8InternalValueType.h"

-#include "platform/v8_inspector/V8StackTraceImpl.h"

-#include "platform/v8_inspector/V8ValueCopier.h"

-#include "platform/v8_inspector/protocol/Protocol.h"

-#include "platform/v8_inspector/public/V8InspectorClient.h"

-namespace v8_inspector {

-namespace {

-const char stepIntoV8MethodName[] = "stepIntoStatement";

-const char stepOutV8MethodName[] = "stepOutOfFunction";

-static const char v8AsyncTaskEventEnqueue[] = "enqueue";

-static const char v8AsyncTaskEventWillHandle[] = "willHandle";

-static const char v8AsyncTaskEventDidHandle[] = "didHandle";

-inline v8::Local<v8::Boolean> v8Boolean(bool value, v8::Isolate* isolate)

- return value ? v8::True(isolate) : v8::False(isolate);

-} // namespace

-static bool inLiveEditScope = false;

-v8::MaybeLocal<v8::Value> V8Debugger::callDebuggerMethod(const char* functionName, int argc, v8::Local<v8::Value> argv[])

- v8::MicrotasksScope microtasks(m_isolate, v8::MicrotasksScope::kDoNotRunMicrotasks);

- v8::Local<v8::Object> debuggerScript = m_debuggerScript.Get(m_isolate);

- v8::Local<v8::Function> function = v8::Local<v8::Function>::Cast(debuggerScript->Get(toV8StringInternalized(m_isolate, functionName)));

- DCHECK(m_isolate->InContext());

- return function->Call(m_isolate->GetCurrentContext(), debuggerScript, argc, argv);

-V8Debugger::V8Debugger(v8::Isolate* isolate, V8InspectorImpl* inspector)

- : m_isolate(isolate)

- , m_inspector(inspector)

- , m_lastContextId(0)

- , m_enableCount(0)

- , m_breakpointsActivated(true)

- , m_runningNestedMessageLoop(false)

- , m_ignoreScriptParsedEventsCounter(0)

- , m_maxAsyncCallStackDepth(0)

-V8Debugger::~V8Debugger()

-void V8Debugger::enable()

- if (m_enableCount++)

- return;

- DCHECK(!enabled());

- v8::HandleScope scope(m_isolate);

- v8::Debug::SetDebugEventListener(m_isolate, &V8Debugger::v8DebugEventCallback, v8::External::New(m_isolate, this));

- m_debuggerContext.Reset(m_isolate, v8::Debug::GetDebugContext(m_isolate));

- compileDebuggerScript();

-void V8Debugger::disable()

- if (--m_enableCount)

- return;

- DCHECK(enabled());

- clearBreakpoints();

- m_debuggerScript.Reset();

- m_debuggerContext.Reset();

- allAsyncTasksCanceled();

- v8::Debug::SetDebugEventListener(m_isolate, nullptr);

-bool V8Debugger::enabled() const

- return !m_debuggerScript.IsEmpty();

-// static

-int V8Debugger::contextId(v8::Local<v8::Context> context)

- v8::Local<v8::Value> data = context->GetEmbedderData(static_cast<int>(v8::Context::kDebugIdIndex));

- if (data.IsEmpty() || !data->IsString())

- return 0;

- String16 dataString = toProtocolString(data.As<v8::String>());

- if (dataString.isEmpty())

- return 0;

- size_t commaPos = dataString.find(",");

- if (commaPos == String16::kNotFound)

- return 0;

- size_t commaPos2 = dataString.find(",", commaPos + 1);

- if (commaPos2 == String16::kNotFound)

- return 0;

- return dataString.substring(commaPos + 1, commaPos2 - commaPos - 1).toInteger();

-// static

-int V8Debugger::getGroupId(v8::Local<v8::Context> context)

- v8::Local<v8::Value> data = context->GetEmbedderData(static_cast<int>(v8::Context::kDebugIdIndex));

- if (data.IsEmpty() || !data->IsString())

- return 0;

- String16 dataString = toProtocolString(data.As<v8::String>());

- if (dataString.isEmpty())

- return 0;

- size_t commaPos = dataString.find(",");

- if (commaPos == String16::kNotFound)

- return 0;

- return dataString.substring(0, commaPos).toInteger();

-void V8Debugger::getCompiledScripts(int contextGroupId, std::vector<std::unique_ptr<V8DebuggerScript>>& result)

- v8::HandleScope scope(m_isolate);

- v8::MicrotasksScope microtasks(m_isolate, v8::MicrotasksScope::kDoNotRunMicrotasks);

- v8::Local<v8::Object> debuggerScript = m_debuggerScript.Get(m_isolate);

- DCHECK(!debuggerScript->IsUndefined());

- v8::Local<v8::Function> getScriptsFunction = v8::Local<v8::Function>::Cast(debuggerScript->Get(toV8StringInternalized(m_isolate, "getScripts")));

- v8::Local<v8::Value> argv[] = { v8::Integer::New(m_isolate, contextGroupId) };

- v8::Local<v8::Value> value;

- if (!getScriptsFunction->Call(debuggerContext(), debuggerScript, V8_INSPECTOR_ARRAY_LENGTH(argv), argv).ToLocal(&value))

- return;

- DCHECK(value->IsArray());

- v8::Local<v8::Array> scriptsArray = v8::Local<v8::Array>::Cast(value);

- result.reserve(scriptsArray->Length());

- for (unsigned i = 0; i < scriptsArray->Length(); ++i) {

- v8::Local<v8::Object> scriptObject = v8::Local<v8::Object>::Cast(scriptsArray->Get(v8::Integer::New(m_isolate, i)));

- result.push_back(wrapUnique(new V8DebuggerScript(m_isolate, scriptObject, inLiveEditScope)));

- }

-String16 V8Debugger::setBreakpoint(const String16& sourceID, const ScriptBreakpoint& scriptBreakpoint, int* actualLineNumber, int* actualColumnNumber)

- v8::HandleScope scope(m_isolate);

- v8::Context::Scope contextScope(debuggerContext());

- v8::Local<v8::Object> info = v8::Object::New(m_isolate);

- info->Set(toV8StringInternalized(m_isolate, "sourceID"), toV8String(m_isolate, sourceID));

- info->Set(toV8StringInternalized(m_isolate, "lineNumber"), v8::Integer::New(m_isolate, scriptBreakpoint.lineNumber));

- info->Set(toV8StringInternalized(m_isolate, "columnNumber"), v8::Integer::New(m_isolate, scriptBreakpoint.columnNumber));

- info->Set(toV8StringInternalized(m_isolate, "condition"), toV8String(m_isolate, scriptBreakpoint.condition));

- v8::Local<v8::Function> setBreakpointFunction = v8::Local<v8::Function>::Cast(m_debuggerScript.Get(m_isolate)->Get(toV8StringInternalized(m_isolate, "setBreakpoint")));

- v8::Local<v8::Value> breakpointId = v8::Debug::Call(debuggerContext(), setBreakpointFunction, info).ToLocalChecked();

- if (!breakpointId->IsString())

- return "";

- *actualLineNumber = info->Get(toV8StringInternalized(m_isolate, "lineNumber"))->Int32Value();

- *actualColumnNumber = info->Get(toV8StringInternalized(m_isolate, "columnNumber"))->Int32Value();

- return toProtocolString(breakpointId.As<v8::String>());

-void V8Debugger::removeBreakpoint(const String16& breakpointId)

- v8::HandleScope scope(m_isolate);

- v8::Context::Scope contextScope(debuggerContext());

- v8::Local<v8::Object> info = v8::Object::New(m_isolate);

- info->Set(toV8StringInternalized(m_isolate, "breakpointId"), toV8String(m_isolate, breakpointId));

- v8::Local<v8::Function> removeBreakpointFunction = v8::Local<v8::Function>::Cast(m_debuggerScript.Get(m_isolate)->Get(toV8StringInternalized(m_isolate, "removeBreakpoint")));

- v8::Debug::Call(debuggerContext(), removeBreakpointFunction, info).ToLocalChecked();

-void V8Debugger::clearBreakpoints()

- v8::HandleScope scope(m_isolate);

- v8::Context::Scope contextScope(debuggerContext());

- v8::Local<v8::Function> clearBreakpoints = v8::Local<v8::Function>::Cast(m_debuggerScript.Get(m_isolate)->Get(toV8StringInternalized(m_isolate, "clearBreakpoints")));

- v8::Debug::Call(debuggerContext(), clearBreakpoints).ToLocalChecked();

-void V8Debugger::setBreakpointsActivated(bool activated)

- if (!enabled()) {

- NOTREACHED();

- return;

- }

- v8::HandleScope scope(m_isolate);

- v8::Context::Scope contextScope(debuggerContext());

- v8::Local<v8::Object> info = v8::Object::New(m_isolate);

- info->Set(toV8StringInternalized(m_isolate, "enabled"), v8::Boolean::New(m_isolate, activated));

- v8::Local<v8::Function> setBreakpointsActivated = v8::Local<v8::Function>::Cast(m_debuggerScript.Get(m_isolate)->Get(toV8StringInternalized(m_isolate, "setBreakpointsActivated")));

- v8::Debug::Call(debuggerContext(), setBreakpointsActivated, info).ToLocalChecked();

- m_breakpointsActivated = activated;

-V8Debugger::PauseOnExceptionsState V8Debugger::getPauseOnExceptionsState()

- DCHECK(enabled());

- v8::HandleScope scope(m_isolate);

- v8::Context::Scope contextScope(debuggerContext());

- v8::Local<v8::Value> argv[] = { v8::Undefined(m_isolate) };

- v8::Local<v8::Value> result = callDebuggerMethod("pauseOnExceptionsState", 0, argv).ToLocalChecked();

- return static_cast<V8Debugger::PauseOnExceptionsState>(result->Int32Value());

-void V8Debugger::setPauseOnExceptionsState(PauseOnExceptionsState pauseOnExceptionsState)

- DCHECK(enabled());

- v8::HandleScope scope(m_isolate);

- v8::Context::Scope contextScope(debuggerContext());

- v8::Local<v8::Value> argv[] = { v8::Int32::New(m_isolate, pauseOnExceptionsState) };

- callDebuggerMethod("setPauseOnExceptionsState", 1, argv);

-void V8Debugger::setPauseOnNextStatement(bool pause)

- if (m_runningNestedMessageLoop)

- return;

- if (pause)

- v8::Debug::DebugBreak(m_isolate);

- else

- v8::Debug::CancelDebugBreak(m_isolate);

-bool V8Debugger::canBreakProgram()

- if (!m_breakpointsActivated)

- return false;

- return m_isolate->InContext();

-void V8Debugger::breakProgram()

- if (isPaused()) {

- DCHECK(!m_runningNestedMessageLoop);

- v8::Local<v8::Value> exception;

- v8::Local<v8::Array> hitBreakpoints;

- handleProgramBreak(m_pausedContext, m_executionState, exception, hitBreakpoints);

- return;

- }

- if (!canBreakProgram())

- return;

- v8::HandleScope scope(m_isolate);

- v8::Local<v8::Function> breakFunction;

- if (!V8_FUNCTION_NEW_REMOVE_PROTOTYPE(m_isolate->GetCurrentContext(), &V8Debugger::breakProgramCallback, v8::External::New(m_isolate, this), 0).ToLocal(&breakFunction))

- return;

- v8::Debug::Call(debuggerContext(), breakFunction).ToLocalChecked();

-void V8Debugger::continueProgram()

- if (isPaused())

- m_inspector->client()->quitMessageLoopOnPause();

- m_pausedContext.Clear();

- m_executionState.Clear();

-void V8Debugger::stepIntoStatement()

- DCHECK(isPaused());

- DCHECK(!m_executionState.IsEmpty());

- v8::HandleScope handleScope(m_isolate);

- v8::Local<v8::Value> argv[] = { m_executionState };

- callDebuggerMethod(stepIntoV8MethodName, 1, argv);

- continueProgram();

-void V8Debugger::stepOverStatement()

- DCHECK(isPaused());

- DCHECK(!m_executionState.IsEmpty());

- v8::HandleScope handleScope(m_isolate);

- v8::Local<v8::Value> argv[] = { m_executionState };

- callDebuggerMethod("stepOverStatement", 1, argv);

- continueProgram();

-void V8Debugger::stepOutOfFunction()

- DCHECK(isPaused());

- DCHECK(!m_executionState.IsEmpty());

- v8::HandleScope handleScope(m_isolate);

- v8::Local<v8::Value> argv[] = { m_executionState };

- callDebuggerMethod(stepOutV8MethodName, 1, argv);

- continueProgram();

-void V8Debugger::clearStepping()

- DCHECK(enabled());

- v8::HandleScope scope(m_isolate);

- v8::Context::Scope contextScope(debuggerContext());

- v8::Local<v8::Value> argv[] = { v8::Undefined(m_isolate) };

- callDebuggerMethod("clearStepping", 0, argv);

-bool V8Debugger::setScriptSource(const String16& sourceID, v8::Local<v8::String> newSource, bool dryRun, ErrorString* error, Maybe<protocol::Runtime::ExceptionDetails>* exceptionDetails, JavaScriptCallFrames* newCallFrames, Maybe<bool>* stackChanged)

- class EnableLiveEditScope {

- public:

- explicit EnableLiveEditScope(v8::Isolate* isolate) : m_isolate(isolate)

- {

- v8::Debug::SetLiveEditEnabled(m_isolate, true);

- inLiveEditScope = true;

- }

- ~EnableLiveEditScope()

- {

- v8::Debug::SetLiveEditEnabled(m_isolate, false);

- inLiveEditScope = false;

- }

- private:

- v8::Isolate* m_isolate;

- };

- DCHECK(enabled());

- v8::HandleScope scope(m_isolate);

- std::unique_ptr<v8::Context::Scope> contextScope;

- if (!isPaused())

- contextScope = wrapUnique(new v8::Context::Scope(debuggerContext()));

- v8::Local<v8::Value> argv[] = { toV8String(m_isolate, sourceID), newSource, v8Boolean(dryRun, m_isolate) };

- v8::Local<v8::Value> v8result;

- {

- EnableLiveEditScope enableLiveEditScope(m_isolate);

- v8::TryCatch tryCatch(m_isolate);

- tryCatch.SetVerbose(false);

- v8::MaybeLocal<v8::Value> maybeResult = callDebuggerMethod("liveEditScriptSource", 3, argv);

- if (tryCatch.HasCaught()) {

- v8::Local<v8::Message> message = tryCatch.Message();

- if (!message.IsEmpty())

- *error = toProtocolStringWithTypeCheck(message->Get());

- else

- *error = "Unknown error.";

- return false;

- }

- v8result = maybeResult.ToLocalChecked();

- }

- DCHECK(!v8result.IsEmpty());

- v8::Local<v8::Object> resultTuple = v8result->ToObject(m_isolate);

- int code = static_cast<int>(resultTuple->Get(0)->ToInteger(m_isolate)->Value());

- switch (code) {

- case 0:

- {

- *stackChanged = resultTuple->Get(1)->BooleanValue();

- // Call stack may have changed after if the edited function was on the stack.

- if (!dryRun && isPaused()) {

- JavaScriptCallFrames frames = currentCallFrames();

- newCallFrames->swap(frames);

- }

- return true;

- }

- // Compile error.

- case 1:

- {

- *exceptionDetails = protocol::Runtime::ExceptionDetails::create()

- .setExceptionId(m_inspector->nextExceptionId())

- .setText(toProtocolStringWithTypeCheck(resultTuple->Get(2)))

- .setLineNumber(resultTuple->Get(3)->ToInteger(m_isolate)->Value() - 1)

- .setColumnNumber(resultTuple->Get(4)->ToInteger(m_isolate)->Value() - 1).build();

- return false;

- }

- *error = "Unknown error.";

- return false;

-JavaScriptCallFrames V8Debugger::currentCallFrames(int limit)

- if (!m_isolate->InContext())

- return JavaScriptCallFrames();

- v8::Local<v8::Value> currentCallFramesV8;

- if (m_executionState.IsEmpty()) {

- v8::Local<v8::Function> currentCallFramesFunction = v8::Local<v8::Function>::Cast(m_debuggerScript.Get(m_isolate)->Get(toV8StringInternalized(m_isolate, "currentCallFrames")));

- currentCallFramesV8 = v8::Debug::Call(debuggerContext(), currentCallFramesFunction, v8::Integer::New(m_isolate, limit)).ToLocalChecked();

- } else {

- v8::Local<v8::Value> argv[] = { m_executionState, v8::Integer::New(m_isolate, limit) };

- currentCallFramesV8 = callDebuggerMethod("currentCallFrames", V8_INSPECTOR_ARRAY_LENGTH(argv), argv).ToLocalChecked();

- }

- DCHECK(!currentCallFramesV8.IsEmpty());

- if (!currentCallFramesV8->IsArray())

- return JavaScriptCallFrames();

- v8::Local<v8::Array> callFramesArray = currentCallFramesV8.As<v8::Array>();

- JavaScriptCallFrames callFrames;

- for (size_t i = 0; i < callFramesArray->Length(); ++i) {

- v8::Local<v8::Value> callFrameValue;

- if (!callFramesArray->Get(debuggerContext(), i).ToLocal(&callFrameValue))

- return JavaScriptCallFrames();

- if (!callFrameValue->IsObject())

- return JavaScriptCallFrames();

- v8::Local<v8::Object> callFrameObject = callFrameValue.As<v8::Object>();

- callFrames.push_back(JavaScriptCallFrame::create(debuggerContext(), v8::Local<v8::Object>::Cast(callFrameObject)));

- }

- return callFrames;

-static V8Debugger* toV8Debugger(v8::Local<v8::Value> data)

- void* p = v8::Local<v8::External>::Cast(data)->Value();

- return static_cast<V8Debugger*>(p);

-void V8Debugger::breakProgramCallback(const v8::FunctionCallbackInfo<v8::Value>& info)

- DCHECK_EQ(info.Length(), 2);

- V8Debugger* thisPtr = toV8Debugger(info.Data());

- if (!thisPtr->enabled())

- return;

- v8::Local<v8::Context> pausedContext = thisPtr->m_isolate->GetCurrentContext();

- v8::Local<v8::Value> exception;

- v8::Local<v8::Array> hitBreakpoints;

- thisPtr->handleProgramBreak(pausedContext, v8::Local<v8::Object>::Cast(info[0]), exception, hitBreakpoints);

-void V8Debugger::handleProgramBreak(v8::Local<v8::Context> pausedContext, v8::Local<v8::Object> executionState, v8::Local<v8::Value> exception, v8::Local<v8::Array> hitBreakpointNumbers, bool isPromiseRejection)

- // Don't allow nested breaks.

- if (m_runningNestedMessageLoop)

- return;

- V8DebuggerAgentImpl* agent = m_inspector->enabledDebuggerAgentForGroup(getGroupId(pausedContext));

- if (!agent)

- return;

- std::vector<String16> breakpointIds;

- if (!hitBreakpointNumbers.IsEmpty()) {

- breakpointIds.reserve(hitBreakpointNumbers->Length());

- for (size_t i = 0; i < hitBreakpointNumbers->Length(); i++) {

- v8::Local<v8::Value> hitBreakpointNumber = hitBreakpointNumbers->Get(i);

- DCHECK(!hitBreakpointNumber.IsEmpty() && hitBreakpointNumber->IsInt32());

- breakpointIds.push_back(String16::fromInteger(hitBreakpointNumber->Int32Value()));

- }

- m_pausedContext = pausedContext;

- m_executionState = executionState;

- V8DebuggerAgentImpl::SkipPauseRequest result = agent->didPause(pausedContext, exception, breakpointIds, isPromiseRejection);

- if (result == V8DebuggerAgentImpl::RequestNoSkip) {

- m_runningNestedMessageLoop = true;

- int groupId = getGroupId(pausedContext);

- DCHECK(groupId);

- m_inspector->client()->runMessageLoopOnPause(groupId);

- // The agent may have been removed in the nested loop.

- agent = m_inspector->enabledDebuggerAgentForGroup(getGroupId(pausedContext));

- if (agent)

- agent->didContinue();

- m_runningNestedMessageLoop = false;

- }

- m_pausedContext.Clear();

- m_executionState.Clear();

- if (result == V8DebuggerAgentImpl::RequestStepFrame) {

- v8::Local<v8::Value> argv[] = { executionState };

- callDebuggerMethod("stepFrameStatement", 1, argv);

- } else if (result == V8DebuggerAgentImpl::RequestStepInto) {

- v8::Local<v8::Value> argv[] = { executionState };

- callDebuggerMethod(stepIntoV8MethodName, 1, argv);

- } else if (result == V8DebuggerAgentImpl::RequestStepOut) {

- v8::Local<v8::Value> argv[] = { executionState };

- callDebuggerMethod(stepOutV8MethodName, 1, argv);

- }

-void V8Debugger::v8DebugEventCallback(const v8::Debug::EventDetails& eventDetails)

- V8Debugger* thisPtr = toV8Debugger(eventDetails.GetCallbackData());

- thisPtr->handleV8DebugEvent(eventDetails);

-v8::Local<v8::Value> V8Debugger::callInternalGetterFunction(v8::Local<v8::Object> object, const char* functionName)

- v8::MicrotasksScope microtasks(m_isolate, v8::MicrotasksScope::kDoNotRunMicrotasks);

- v8::Local<v8::Value> getterValue = object->Get(toV8StringInternalized(m_isolate, functionName));

- DCHECK(!getterValue.IsEmpty() && getterValue->IsFunction());

- return v8::Local<v8::Function>::Cast(getterValue)->Call(m_isolate->GetCurrentContext(), object, 0, 0).ToLocalChecked();

-void V8Debugger::handleV8DebugEvent(const v8::Debug::EventDetails& eventDetails)

- if (!enabled())

- return;

- v8::DebugEvent event = eventDetails.GetEvent();

- if (event != v8::AsyncTaskEvent && event != v8::Break && event != v8::Exception && event != v8::AfterCompile && event != v8::BeforeCompile && event != v8::CompileError)

- return;

- v8::Local<v8::Context> eventContext = eventDetails.GetEventContext();

- DCHECK(!eventContext.IsEmpty());

- if (event == v8::AsyncTaskEvent) {

- v8::HandleScope scope(m_isolate);

- handleV8AsyncTaskEvent(eventContext, eventDetails.GetExecutionState(), eventDetails.GetEventData());

- return;

- }

- V8DebuggerAgentImpl* agent = m_inspector->enabledDebuggerAgentForGroup(getGroupId(eventContext));

- if (agent) {

- v8::HandleScope scope(m_isolate);

- if (m_ignoreScriptParsedEventsCounter == 0 && (event == v8::AfterCompile || event == v8::CompileError)) {

- v8::Context::Scope contextScope(debuggerContext());

- v8::Local<v8::Value> argv[] = { eventDetails.GetEventData() };

- v8::Local<v8::Value> value = callDebuggerMethod("getAfterCompileScript", 1, argv).ToLocalChecked();

- if (value->IsNull())

- return;

- DCHECK(value->IsObject());

- v8::Local<v8::Object> scriptObject = v8::Local<v8::Object>::Cast(value);

- agent->didParseSource(wrapUnique(new V8DebuggerScript(m_isolate, scriptObject, inLiveEditScope)), event == v8::AfterCompile);

- } else if (event == v8::Exception) {

- v8::Local<v8::Object> eventData = eventDetails.GetEventData();

- v8::Local<v8::Value> exception = callInternalGetterFunction(eventData, "exception");

- v8::Local<v8::Value> promise = callInternalGetterFunction(eventData, "promise");

- bool isPromiseRejection = !promise.IsEmpty() && promise->IsObject();

- handleProgramBreak(eventContext, eventDetails.GetExecutionState(), exception, v8::Local<v8::Array>(), isPromiseRejection);

- } else if (event == v8::Break) {

- v8::Local<v8::Value> argv[] = { eventDetails.GetEventData() };

- v8::Local<v8::Value> hitBreakpoints = callDebuggerMethod("getBreakpointNumbers", 1, argv).ToLocalChecked();

- DCHECK(hitBreakpoints->IsArray());

- handleProgramBreak(eventContext, eventDetails.GetExecutionState(), v8::Local<v8::Value>(), hitBreakpoints.As<v8::Array>());

- }

-void V8Debugger::handleV8AsyncTaskEvent(v8::Local<v8::Context> context, v8::Local<v8::Object> executionState, v8::Local<v8::Object> eventData)

- if (!m_maxAsyncCallStackDepth)

- return;

- String16 type = toProtocolStringWithTypeCheck(callInternalGetterFunction(eventData, "type"));

- String16 name = toProtocolStringWithTypeCheck(callInternalGetterFunction(eventData, "name"));

- int id = callInternalGetterFunction(eventData, "id")->ToInteger(m_isolate)->Value();

- // The scopes for the ids are defined by the eventData.name namespaces. There are currently two namespaces: "Object." and "Promise.".

- void* ptr = reinterpret_cast<void*>(id * 4 + (name[0] == 'P' ? 2 : 0) + 1);

- if (type == v8AsyncTaskEventEnqueue)

- asyncTaskScheduled(name, ptr, false);

- else if (type == v8AsyncTaskEventWillHandle)

- asyncTaskStarted(ptr);

- else if (type == v8AsyncTaskEventDidHandle)

- asyncTaskFinished(ptr);

- else

- NOTREACHED();

-V8StackTraceImpl* V8Debugger::currentAsyncCallChain()

- if (!m_currentStacks.size())

- return nullptr;

- return m_currentStacks.back().get();

-void V8Debugger::compileDebuggerScript()

- if (!m_debuggerScript.IsEmpty()) {

- NOTREACHED();

- return;

- }

- v8::HandleScope scope(m_isolate);

- v8::Context::Scope contextScope(debuggerContext());

- v8::Local<v8::String> scriptValue = v8::String::NewFromUtf8(m_isolate, DebuggerScript_js, v8::NewStringType::kInternalized, sizeof(DebuggerScript_js)).ToLocalChecked();

- v8::Local<v8::Value> value;

- if (!m_inspector->compileAndRunInternalScript(debuggerContext(), scriptValue).ToLocal(&value)) {

- NOTREACHED();

- return;

- }

- DCHECK(value->IsObject());

- m_debuggerScript.Reset(m_isolate, value.As<v8::Object>());

-v8::Local<v8::Context> V8Debugger::debuggerContext() const

- DCHECK(!m_debuggerContext.IsEmpty());

- return m_debuggerContext.Get(m_isolate);

-v8::MaybeLocal<v8::Value> V8Debugger::functionScopes(v8::Local<v8::Context> context, v8::Local<v8::Function> function)

- if (!enabled()) {

- NOTREACHED();

- return v8::Local<v8::Value>::New(m_isolate, v8::Undefined(m_isolate));

- }

- v8::Local<v8::Value> argv[] = { function };

- v8::Local<v8::Value> scopesValue;

- if (!callDebuggerMethod("getFunctionScopes", 1, argv).ToLocal(&scopesValue))

- return v8::MaybeLocal<v8::Value>();

- v8::Local<v8::Value> copied;

- if (!copyValueFromDebuggerContext(m_isolate, debuggerContext(), context, scopesValue).ToLocal(&copied) || !copied->IsArray())

- return v8::MaybeLocal<v8::Value>();

- if (!markAsInternal(context, v8::Local<v8::Array>::Cast(copied), V8InternalValueType::kScopeList))

- return v8::MaybeLocal<v8::Value>();

- if (!markArrayEntriesAsInternal(context, v8::Local<v8::Array>::Cast(copied), V8InternalValueType::kScope))

- return v8::MaybeLocal<v8::Value>();

- return copied;

-v8::MaybeLocal<v8::Array> V8Debugger::internalProperties(v8::Local<v8::Context> context, v8::Local<v8::Value> value)

- v8::Local<v8::Array> properties;

- if (!v8::Debug::GetInternalProperties(m_isolate, value).ToLocal(&properties))

- return v8::MaybeLocal<v8::Array>();

- if (value->IsFunction()) {

- v8::Local<v8::Function> function = value.As<v8::Function>();

- v8::Local<v8::Value> location = functionLocation(context, function);

- if (location->IsObject()) {

- createDataProperty(context, properties, properties->Length(), toV8StringInternalized(m_isolate, "[[FunctionLocation]]"));

- createDataProperty(context, properties, properties->Length(), location);

- }

- if (function->IsGeneratorFunction()) {

- createDataProperty(context, properties, properties->Length(), toV8StringInternalized(m_isolate, "[[IsGenerator]]"));

- createDataProperty(context, properties, properties->Length(), v8::True(m_isolate));

- }

- if (!enabled())

- return properties;

- if (value->IsMap() || value->IsWeakMap() || value->IsSet() || value->IsWeakSet() || value->IsSetIterator() || value->IsMapIterator()) {

- v8::Local<v8::Value> entries = collectionEntries(context, v8::Local<v8::Object>::Cast(value));

- if (entries->IsArray()) {

- createDataProperty(context, properties, properties->Length(), toV8StringInternalized(m_isolate, "[[Entries]]"));

- createDataProperty(context, properties, properties->Length(), entries);

- }

- if (value->IsGeneratorObject()) {

- v8::Local<v8::Value> location = generatorObjectLocation(context, v8::Local<v8::Object>::Cast(value));

- if (location->IsObject()) {

- createDataProperty(context, properties, properties->Length(), toV8StringInternalized(m_isolate, "[[GeneratorLocation]]"));

- createDataProperty(context, properties, properties->Length(), location);

- }

- if (value->IsFunction()) {

- v8::Local<v8::Function> function = value.As<v8::Function>();

- v8::Local<v8::Value> boundFunction = function->GetBoundFunction();

- v8::Local<v8::Value> scopes;

- if (boundFunction->IsUndefined() && functionScopes(context, function).ToLocal(&scopes)) {

- createDataProperty(context, properties, properties->Length(), toV8StringInternalized(m_isolate, "[[Scopes]]"));

- createDataProperty(context, properties, properties->Length(), scopes);

- }

- return properties;

-v8::Local<v8::Value> V8Debugger::collectionEntries(v8::Local<v8::Context> context, v8::Local<v8::Object> object)

- if (!enabled()) {

- NOTREACHED();

- return v8::Undefined(m_isolate);

- }

- v8::Local<v8::Value> argv[] = { object };

- v8::Local<v8::Value> entriesValue = callDebuggerMethod("getCollectionEntries", 1, argv).ToLocalChecked();

- v8::Local<v8::Value> copied;

- if (!copyValueFromDebuggerContext(m_isolate, debuggerContext(), context, entriesValue).ToLocal(&copied) || !copied->IsArray())

- return v8::Undefined(m_isolate);

- if (!markArrayEntriesAsInternal(context, v8::Local<v8::Array>::Cast(copied), V8InternalValueType::kEntry))

- return v8::Undefined(m_isolate);

- return copied;

-v8::Local<v8::Value> V8Debugger::generatorObjectLocation(v8::Local<v8::Context> context, v8::Local<v8::Object> object)

- if (!enabled()) {

- NOTREACHED();

- return v8::Null(m_isolate);

- }

- v8::Local<v8::Value> argv[] = { object };

- v8::Local<v8::Value> location = callDebuggerMethod("getGeneratorObjectLocation", 1, argv).ToLocalChecked();

- v8::Local<v8::Value> copied;

- if (!copyValueFromDebuggerContext(m_isolate, debuggerContext(), context, location).ToLocal(&copied) || !copied->IsObject())

- return v8::Null(m_isolate);

- if (!markAsInternal(context, v8::Local<v8::Object>::Cast(copied), V8InternalValueType::kLocation))

- return v8::Null(m_isolate);

- return copied;

-v8::Local<v8::Value> V8Debugger::functionLocation(v8::Local<v8::Context> context, v8::Local<v8::Function> function)

- int scriptId = function->ScriptId();

- if (scriptId == v8::UnboundScript::kNoScriptId)

- return v8::Null(m_isolate);

- int lineNumber = function->GetScriptLineNumber();

- int columnNumber = function->GetScriptColumnNumber();

- if (lineNumber == v8::Function::kLineOffsetNotFound || columnNumber == v8::Function::kLineOffsetNotFound)

- return v8::Null(m_isolate);

- v8::Local<v8::Object> location = v8::Object::New(m_isolate);

- if (!location->SetPrototype(context, v8::Null(m_isolate)).FromMaybe(false))

- return v8::Null(m_isolate);

- if (!createDataProperty(context, location, toV8StringInternalized(m_isolate, "scriptId"), toV8String(m_isolate, String16::fromInteger(scriptId))).FromMaybe(false))

- return v8::Null(m_isolate);

- if (!createDataProperty(context, location, toV8StringInternalized(m_isolate, "lineNumber"), v8::Integer::New(m_isolate, lineNumber)).FromMaybe(false))

- return v8::Null(m_isolate);

- if (!createDataProperty(context, location, toV8StringInternalized(m_isolate, "columnNumber"), v8::Integer::New(m_isolate, columnNumber)).FromMaybe(false))

- return v8::Null(m_isolate);

- if (!markAsInternal(context, location, V8InternalValueType::kLocation))

- return v8::Null(m_isolate);

- return location;

-bool V8Debugger::isPaused()

- return !m_pausedContext.IsEmpty();

-std::unique_ptr<V8StackTraceImpl> V8Debugger::createStackTrace(v8::Local<v8::StackTrace> stackTrace)

- int contextGroupId = m_isolate->InContext() ? getGroupId(m_isolate->GetCurrentContext()) : 0;

- return V8StackTraceImpl::create(this, contextGroupId, stackTrace, V8StackTraceImpl::maxCallStackSizeToCapture);

-int V8Debugger::markContext(const V8ContextInfo& info)

- DCHECK(info.context->GetIsolate() == m_isolate);

- int contextId = ++m_lastContextId;

- String16 debugData = String16::fromInteger(info.contextGroupId) + "," + String16::fromInteger(contextId) + "," + toString16(info.auxData);

- v8::Context::Scope contextScope(info.context);

- info.context->SetEmbedderData(static_cast<int>(v8::Context::kDebugIdIndex), toV8String(m_isolate, debugData));

- return contextId;

-void V8Debugger::setAsyncCallStackDepth(V8DebuggerAgentImpl* agent, int depth)

- if (depth <= 0)

- m_maxAsyncCallStackDepthMap.erase(agent);

- else

- m_maxAsyncCallStackDepthMap[agent] = depth;

- int maxAsyncCallStackDepth = 0;

- for (const auto& pair : m_maxAsyncCallStackDepthMap) {

- if (pair.second > maxAsyncCallStackDepth)

- maxAsyncCallStackDepth = pair.second;

- }

- if (m_maxAsyncCallStackDepth == maxAsyncCallStackDepth)

- return;

- m_maxAsyncCallStackDepth = maxAsyncCallStackDepth;

- if (!maxAsyncCallStackDepth)

- allAsyncTasksCanceled();

-void V8Debugger::asyncTaskScheduled(const StringView& taskName, void* task, bool recurring)

- if (!m_maxAsyncCallStackDepth)

- return;

- asyncTaskScheduled(toString16(taskName), task, recurring);

-void V8Debugger::asyncTaskScheduled(const String16& taskName, void* task, bool recurring)

- if (!m_maxAsyncCallStackDepth)

- return;

- v8::HandleScope scope(m_isolate);

- int contextGroupId = m_isolate->InContext() ? getGroupId(m_isolate->GetCurrentContext()) : 0;

- std::unique_ptr<V8StackTraceImpl> chain = V8StackTraceImpl::capture(this, contextGroupId, V8StackTraceImpl::maxCallStackSizeToCapture, taskName);

- if (chain) {

- m_asyncTaskStacks[task] = std::move(chain);

- if (recurring)

- m_recurringTasks.insert(task);

- }

-void V8Debugger::asyncTaskCanceled(void* task)

- if (!m_maxAsyncCallStackDepth)

- return;

- m_asyncTaskStacks.erase(task);

- m_recurringTasks.erase(task);

-void V8Debugger::asyncTaskStarted(void* task)

- if (!m_maxAsyncCallStackDepth)

- return;

- m_currentTasks.push_back(task);

- AsyncTaskToStackTrace::iterator stackIt = m_asyncTaskStacks.find(task);

- // Needs to support following order of events:

- // - asyncTaskScheduled

- // <-- attached here -->

- // - asyncTaskStarted

- // - asyncTaskCanceled <-- canceled before finished

- // <-- async stack requested here -->

- // - asyncTaskFinished

- std::unique_ptr<V8StackTraceImpl> stack;

- if (stackIt != m_asyncTaskStacks.end() && stackIt->second)

- stack = stackIt->second->cloneImpl();

- m_currentStacks.push_back(std::move(stack));

-void V8Debugger::asyncTaskFinished(void* task)

- if (!m_maxAsyncCallStackDepth)

- return;

- // We could start instrumenting half way and the stack is empty.

- if (!m_currentStacks.size())

- return;

- DCHECK(m_currentTasks.back() == task);

- m_currentTasks.pop_back();

- m_currentStacks.pop_back();

- if (m_recurringTasks.find(task) == m_recurringTasks.end())

- m_asyncTaskStacks.erase(task);

-void V8Debugger::allAsyncTasksCanceled()

- m_asyncTaskStacks.clear();

- m_recurringTasks.clear();

- m_currentStacks.clear();

- m_currentTasks.clear();

-void V8Debugger::muteScriptParsedEvents()

- ++m_ignoreScriptParsedEventsCounter;

-void V8Debugger::unmuteScriptParsedEvents()

- --m_ignoreScriptParsedEventsCounter;

- DCHECK_GE(m_ignoreScriptParsedEventsCounter, 0);

-std::unique_ptr<V8StackTraceImpl> V8Debugger::captureStackTrace(bool fullStack)

- if (!m_isolate->InContext())

- return nullptr;

- v8::HandleScope handles(m_isolate);

- int contextGroupId = getGroupId(m_isolate->GetCurrentContext());

- if (!contextGroupId)

- return nullptr;

- size_t stackSize = fullStack ? V8StackTraceImpl::maxCallStackSizeToCapture : 1;

- if (m_inspector->enabledRuntimeAgentForGroup(contextGroupId))

- stackSize = V8StackTraceImpl::maxCallStackSizeToCapture;

- return V8StackTraceImpl::capture(this, contextGroupId, stackSize);

-} // namespace v8_inspector