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Diffstat (limited to 'src/qml/debugger/qv4debugservice.cpp')
| -rw-r--r-- | src/qml/debugger/qv4debugservice.cpp | 1265 |
1 files changed, 0 insertions, 1265 deletions
diff --git a/src/qml/debugger/qv4debugservice.cpp b/src/qml/debugger/qv4debugservice.cpp deleted file mode 100644 index cefb29e031..0000000000 --- a/src/qml/debugger/qv4debugservice.cpp +++ /dev/null @@ -1,1265 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2015 The Qt Company Ltd. -** Contact: http://www.qt.io/licensing/ -** -** This file is part of the QtQml module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL21$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see http://www.qt.io/terms-conditions. For further -** information use the contact form at http://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 or version 3 as published by the Free -** Software Foundation and appearing in the file LICENSE.LGPLv21 and -** LICENSE.LGPLv3 included in the packaging of this file. Please review the -** following information to ensure the GNU Lesser General Public License -** requirements will be met: https://www.gnu.org/licenses/lgpl.html and -** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** As a special exception, The Qt Company gives you certain additional -** rights. These rights are described in The Qt Company LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qv4debugservice_p.h" -#include "qqmlconfigurabledebugservice_p_p.h" -#include "qqmlengine.h" -#include "qv4debugging_p.h" -#include "qv4engine_p.h" -#include "qv4function_p.h" -#include "qqmldebugserver_p.h" - -#include <private/qv8engine_p.h> - -#include <QtCore/QJsonArray> -#include <QtCore/QJsonDocument> -#include <QtCore/QJsonObject> -#include <QtCore/QJsonValue> - -const char *V4_CONNECT = "connect"; -const char *V4_DISCONNECT = "disconnect"; -const char *V4_BREAK_ON_SIGNAL = "breakonsignal"; -const char *V4_ADD_BREAKPOINT = "addBreakpoint"; -const char *V4_REMOVE_BREAKPOINT = "removeBreakpoint"; -const char *V4_PAUSE = "interrupt"; -const char *V4_ALL = "all"; -const char *V4_BREAK = "break"; - -const char *V4_FILENAME = "filename"; -const char *V4_LINENUMBER = "linenumber"; - -#define NO_PROTOCOL_TRACING -#ifdef NO_PROTOCOL_TRACING -# define TRACE_PROTOCOL(x) -#else -#include <QtCore/QDebug> -# define TRACE_PROTOCOL(x) x -#endif - -QT_BEGIN_NAMESPACE - -Q_GLOBAL_STATIC(QV4DebugService, v4ServiceInstance) - -class QV4DebugServicePrivate; - -class QV4DebuggerAgent : public QV4::Debugging::DebuggerAgent -{ -public: - QV4DebuggerAgent(QV4DebugServicePrivate *debugServicePrivate) - : debugServicePrivate(debugServicePrivate) - {} - - QV4::Debugging::Debugger *firstDebugger() const - { - // Currently only 1 single engine is supported, so: - if (m_debuggers.isEmpty()) - return 0; - else - return m_debuggers.first(); - } - - bool isRunning() const - { - // Currently only 1 single engine is supported, so: - if (QV4::Debugging::Debugger *debugger = firstDebugger()) - return debugger->state() == QV4::Debugging::Debugger::Running; - else - return false; - } - -public slots: - virtual void debuggerPaused(QV4::Debugging::Debugger *debugger, QV4::Debugging::PauseReason reason); - virtual void sourcesCollected(QV4::Debugging::Debugger *debugger, QStringList sources, int requestSequenceNr); - -private: - QV4DebugServicePrivate *debugServicePrivate; -}; - -class V8CommandHandler; -class UnknownV8CommandHandler; - -class VariableCollector: public QV4::Debugging::Debugger::Collector -{ -public: - VariableCollector(QV4::ExecutionEngine *engine) - : Collector(engine) - , destination(0) - {} - - virtual ~VariableCollector() {} - - void collectScope(QJsonArray *dest, QV4::Debugging::Debugger *debugger, int frameNr, int scopeNr) - { - qSwap(destination, dest); - bool oldIsProp = isProperty(); - setIsProperty(true); - debugger->collectArgumentsInContext(this, frameNr, scopeNr); - debugger->collectLocalsInContext(this, frameNr, scopeNr); - setIsProperty(oldIsProp); - qSwap(destination, dest); - } - - void setDestination(QJsonArray *dest) - { destination = dest; } - - QJsonArray retrieveRefsToInclude() - { - QJsonArray result; - qSwap(refsToInclude, result); - return result; - } - - QJsonValue lookup(int handle, bool addRefs = true) - { - if (handle < 0) - handle = -handle; - - if (addRefs) - foreach (int ref, refsByHandle[handle]) - refsToInclude.append(lookup(ref, false)); - return refs[handle]; - } - - QJsonObject makeRef(int refId) - { - QJsonObject ref; - ref[QLatin1String("ref")] = refId; - return ref; - } - - QJsonObject addFunctionRef(const QString &name) - { - const int refId = newRefId(); - - QJsonObject func; - func[QLatin1String("handle")] = refId; - func[QLatin1String("type")] = QStringLiteral("function"); - func[QLatin1String("className")] = QStringLiteral("Function"); - func[QLatin1String("name")] = name; - insertRef(func, refId); - - return makeRef(refId); - } - - QJsonObject addScriptRef(const QString &name) - { - const int refId = newRefId(); - - QJsonObject func; - func[QLatin1String("handle")] = refId; - func[QLatin1String("type")] = QStringLiteral("script"); - func[QLatin1String("name")] = name; - insertRef(func, refId); - - return makeRef(refId); - } - - QJsonObject addObjectRef(QJsonObject obj, bool anonymous) - { - int ref = newRefId(); - - if (anonymous) - ref = -ref; - obj[QLatin1String("handle")] = ref; - obj[QLatin1String("type")] = QStringLiteral("object"); - insertRef(obj, ref); - QSet<int> used; - qSwap(usedRefs, used); - refsByHandle.insert(ref, used); - - return makeRef(ref); - } - -protected: - virtual void addUndefined(const QString &name) - { - QJsonObject o; - addHandle(name, o, QStringLiteral("undefined")); - } - - virtual void addNull(const QString &name) - { - QJsonObject o; - addHandle(name, o, QStringLiteral("null")); - } - - virtual void addBoolean(const QString &name, bool value) - { - QJsonObject o; - o[QLatin1String("value")] = value; - addHandle(name, o, QStringLiteral("boolean")); - } - - virtual void addString(const QString &name, const QString &value) - { - QJsonObject o; - o[QLatin1String("value")] = value; - addHandle(name, o, QStringLiteral("string")); - } - - virtual void addObject(const QString &name, const QV4::Value &value) - { - QV4::Scope scope(engine()); - QV4::ScopedObject obj(scope, value.asObject()); - - int ref = cachedObjectRef(obj); - if (ref != -1) { - addNameRefPair(name, ref); - } else { - int ref = newRefId(); - cacheObjectRef(obj, ref); - - QJsonArray properties, *prev = &properties; - QSet<int> used; - qSwap(usedRefs, used); - qSwap(destination, prev); - collect(obj); - qSwap(destination, prev); - qSwap(usedRefs, used); - - QJsonObject o; - o[QLatin1String("properties")] = properties; - addHandle(name, o, QStringLiteral("object"), ref); - refsByHandle.insert(ref, used); - } - } - - virtual void addInteger(const QString &name, int value) - { - QJsonObject o; - o[QLatin1String("value")] = value; - addHandle(name, o, QStringLiteral("number")); - } - - virtual void addDouble(const QString &name, double value) - { - QJsonObject o; - o[QLatin1String("value")] = value; - addHandle(name, o, QStringLiteral("number")); - } - -private: - int addHandle(const QString &name, QJsonObject object, const QString &type, int suppliedRef = -1) - { - Q_ASSERT(destination); - - object[QLatin1String("type")] = type; - - QJsonDocument tmp; - tmp.setObject(object); - QByteArray key = tmp.toJson(QJsonDocument::Compact); - - int ref; - if (suppliedRef == -1) { - ref = refCache.value(key, -1); - if (ref == -1) { - ref = newRefId(); - object[QLatin1String("handle")] = ref; - insertRef(object, ref); - refCache.insert(key, ref); - } - } else { - ref = suppliedRef; - object[QLatin1String("handle")] = ref; - insertRef(object, ref); - refCache.insert(key, ref); - } - - addNameRefPair(name, ref); - return ref; - } - - void addNameRefPair(const QString &name, int ref) - { - QJsonObject nameValuePair; - nameValuePair[QLatin1String("name")] = name; - if (isProperty()) { - nameValuePair[QLatin1String("ref")] = ref; - } else { - QJsonObject refObj; - refObj[QLatin1String("ref")] = ref; - nameValuePair[QLatin1String("value")] = refObj; - } - destination->append(nameValuePair); - usedRefs.insert(ref); - } - - int newRefId() - { - int ref = refs.count(); - refs.insert(ref, QJsonValue()); - return ref; - } - - void insertRef(const QJsonValue &value, int refId) - { - if (refId < 0) - refId = -refId; - - refs.insert(refId, value); - refsToInclude.append(value); - } - - void cacheObjectRef(QV4::Value obj, int ref) - { - objectRefs.insert(obj.val, ref); - } - - int cachedObjectRef(QV4::Value obj) const - { - return objectRefs.value(obj.val, -1); - } - -private: - QJsonArray refsToInclude; - QHash<int, QJsonValue> refs; - QHash<QByteArray, int> refCache; - QJsonArray *destination; - QSet<int> usedRefs; - QHash<int, QSet<int> > refsByHandle; - QHash<quint64, int> objectRefs; -}; - -class QV4DebugServicePrivate : public QQmlConfigurableDebugServicePrivate -{ - Q_DECLARE_PUBLIC(QV4DebugService) - -public: - QV4DebugServicePrivate(); - ~QV4DebugServicePrivate() { qDeleteAll(handlers.values()); } - - static QByteArray packMessage(const QByteArray &command, const QByteArray &message = QByteArray()) - { - QByteArray reply; - QQmlDebugStream rs(&reply, QIODevice::WriteOnly); - static const QByteArray cmd("V8DEBUG"); - rs << cmd << command << message; - return reply; - } - - void send(QJsonObject v8Payload) - { - v8Payload[QLatin1String("seq")] = sequence++; - QJsonDocument doc; - doc.setObject(v8Payload); -#ifdef NO_PROTOCOL_TRACING - QByteArray responseData = doc.toJson(QJsonDocument::Compact); -#else - QByteArray responseData = doc.toJson(QJsonDocument::Indented); -#endif - - TRACE_PROTOCOL(qDebug() << "sending response for:" << responseData << endl); - - q_func()->sendMessage(packMessage("v8message", responseData)); - } - - void processCommand(const QByteArray &command, const QByteArray &data); - - QV4DebuggerAgent debuggerAgent; - - QStringList breakOnSignals; - QMap<int, QV4::Debugging::Debugger *> debuggerMap; - static int debuggerIndex; - static int sequence; - const int version; - - V8CommandHandler *v8CommandHandler(const QString &command) const; - - void clearHandles(QV4::ExecutionEngine *engine) - { - theCollector.reset(new VariableCollector(engine)); - } - - QJsonObject buildFrame(const QV4::StackFrame &stackFrame, int frameNr, - QV4::Debugging::Debugger *debugger) - { - QJsonObject frame; - frame[QLatin1String("index")] = frameNr; - frame[QLatin1String("debuggerFrame")] = false; - frame[QLatin1String("func")] = theCollector->addFunctionRef(stackFrame.function); - frame[QLatin1String("script")] = theCollector->addScriptRef(stackFrame.source); - frame[QLatin1String("line")] = stackFrame.line - 1; - if (stackFrame.column >= 0) - frame[QLatin1String("column")] = stackFrame.column; - - QJsonArray properties; - theCollector->setDestination(&properties); - if (debugger->collectThisInContext(theCollector.data(), frameNr)) { - QJsonObject obj; - obj[QLatin1String("properties")] = properties; - frame[QLatin1String("receiver")] = theCollector->addObjectRef(obj, false); - } - - QJsonArray scopes; - // Only type and index are used by Qt Creator, so we keep it easy: - QVector<QV4::Heap::ExecutionContext::ContextType> scopeTypes = debugger->getScopeTypes(frameNr); - for (int i = 0, ei = scopeTypes.count(); i != ei; ++i) { - int type = encodeScopeType(scopeTypes[i]); - if (type == -1) - continue; - - QJsonObject scope; - scope[QLatin1String("index")] = i; - scope[QLatin1String("type")] = type; - scopes.push_back(scope); - } - frame[QLatin1String("scopes")] = scopes; - - return frame; - } - - int encodeScopeType(QV4::Heap::ExecutionContext::ContextType scopeType) - { - switch (scopeType) { - case QV4::Heap::ExecutionContext::Type_GlobalContext: - return 0; - break; - case QV4::Heap::ExecutionContext::Type_CatchContext: - return 4; - break; - case QV4::Heap::ExecutionContext::Type_WithContext: - return 2; - break; - case QV4::Heap::ExecutionContext::Type_SimpleCallContext: - case QV4::Heap::ExecutionContext::Type_CallContext: - return 1; - break; - case QV4::Heap::ExecutionContext::Type_QmlContext: - default: - return -1; - } - } - - QJsonObject buildScope(int frameNr, int scopeNr, QV4::Debugging::Debugger *debugger) - { - QJsonObject scope; - - QJsonArray properties; - theCollector->collectScope(&properties, debugger, frameNr, scopeNr); - - QJsonObject anonymous; - anonymous[QLatin1String("properties")] = properties; - - QVector<QV4::Heap::ExecutionContext::ContextType> scopeTypes = debugger->getScopeTypes(frameNr); - scope[QLatin1String("type")] = encodeScopeType(scopeTypes[scopeNr]); - scope[QLatin1String("index")] = scopeNr; - scope[QLatin1String("frameIndex")] = frameNr; - scope[QLatin1String("object")] = theCollector->addObjectRef(anonymous, true); - - return scope; - } - - QJsonValue lookup(int refId) const { return theCollector->lookup(refId); } - - QJsonArray buildRefs() - { - return theCollector->retrieveRefsToInclude(); - } - - VariableCollector *collector() const - { - return theCollector.data(); - } - - void selectFrame(int frameNr) - { theSelectedFrame = frameNr; } - - int selectedFrame() const - { return theSelectedFrame; } - -private: - QScopedPointer<VariableCollector> theCollector; - int theSelectedFrame; - - void addHandler(V8CommandHandler* handler); - QHash<QString, V8CommandHandler*> handlers; - QScopedPointer<UnknownV8CommandHandler> unknownV8CommandHandler; -}; - -int QV4DebugServicePrivate::debuggerIndex = 0; -int QV4DebugServicePrivate::sequence = 0; - -class V8CommandHandler -{ -public: - V8CommandHandler(const QString &command) - : cmd(command) - {} - - virtual ~V8CommandHandler() - {} - - QString command() const { return cmd; } - - void handle(const QJsonObject &request, QQmlDebugService *s, QV4DebugServicePrivate *p) - { - TRACE_PROTOCOL(qDebug() << "handling command" << command() << "..."); - - req = request; - seq = req.value(QStringLiteral("seq")); - debugService = s; - debugServicePrivate = p; - - handleRequest(); - if (!response.isEmpty()) { - response[QLatin1String("type")] = QStringLiteral("response"); - debugServicePrivate->send(response); - } - - debugServicePrivate = 0; - debugService = 0; - seq = QJsonValue(); - req = QJsonObject(); - response = QJsonObject(); - } - - virtual void handleRequest() = 0; - -protected: - void addCommand() { response.insert(QStringLiteral("command"), cmd); } - void addRequestSequence() { response.insert(QStringLiteral("request_seq"), seq); } - void addSuccess(bool success) { response.insert(QStringLiteral("success"), success); } - void addBody(const QJsonObject &body) - { - response.insert(QStringLiteral("body"), body); - } - - void addRunning() - { - response.insert(QStringLiteral("running"), debugServicePrivate->debuggerAgent.isRunning()); - } - - void addRefs() - { - response.insert(QStringLiteral("refs"), debugServicePrivate->buildRefs()); - } - - void createErrorResponse(const QString &msg) - { - QJsonValue command = req.value(QStringLiteral("command")); - response.insert(QStringLiteral("command"), command); - addRequestSequence(); - addSuccess(false); - addRunning(); - response.insert(QStringLiteral("message"), msg); - } - - int requestSequenceNr() const - { return seq.toInt(-1); } - -protected: - QString cmd; - QJsonObject req; - QJsonValue seq; - QQmlDebugService *debugService; - QV4DebugServicePrivate *debugServicePrivate; - QJsonObject response; -}; - -class UnknownV8CommandHandler: public V8CommandHandler -{ -public: - UnknownV8CommandHandler(): V8CommandHandler(QString()) {} - - virtual void handleRequest() - { - QString msg = QStringLiteral("unimplemented command \""); - msg += req.value(QStringLiteral("command")).toString(); - msg += QStringLiteral("\""); - createErrorResponse(msg); - } -}; - -namespace { -class V8VersionRequest: public V8CommandHandler -{ -public: - V8VersionRequest(): V8CommandHandler(QStringLiteral("version")) {} - - virtual void handleRequest() - { - addCommand(); - addRequestSequence(); - addSuccess(true); - addRunning(); - QJsonObject body; - body.insert(QStringLiteral("V8Version"), - QLatin1String("this is not V8, this is V4 in Qt " QT_VERSION_STR)); - addBody(body); - } -}; - -class V8SetBreakPointRequest: public V8CommandHandler -{ -public: - V8SetBreakPointRequest(): V8CommandHandler(QStringLiteral("setbreakpoint")) {} - - virtual void handleRequest() - { - // decypher the payload: - QJsonObject args = req.value(QStringLiteral("arguments")).toObject(); - if (args.isEmpty()) - return; - - QString type = args.value(QStringLiteral("type")).toString(); - if (type != QStringLiteral("scriptRegExp")) { - createErrorResponse(QStringLiteral("breakpoint type \"%1\" is not implemented").arg(type)); - return; - } - - QString fileName = args.value(QStringLiteral("target")).toString(); - if (fileName.isEmpty()) { - createErrorResponse(QStringLiteral("breakpoint has no file name")); - return; - } - - int line = args.value(QStringLiteral("line")).toInt(-1); - if (line < 0) { - createErrorResponse(QStringLiteral("breakpoint has an invalid line number")); - return; - } - - bool enabled = args.value(QStringLiteral("enabled")).toBool(true); - QString condition = args.value(QStringLiteral("condition")).toString(); - - // set the break point: - int id = debugServicePrivate->debuggerAgent.addBreakPoint(fileName, line + 1, enabled, condition); - - // response: - addCommand(); - addRequestSequence(); - addSuccess(true); - addRunning(); - QJsonObject body; - body.insert(QStringLiteral("type"), type); - body.insert(QStringLiteral("breakpoint"), id); - // It's undocumented, but V8 sends back an actual_locations array too. However, our - // Debugger currently doesn't tell us when it resolved a breakpoint, so we'll leave them - // pending until the breakpoint is hit for the first time. - addBody(body); - } -}; - -class V8ClearBreakPointRequest: public V8CommandHandler -{ -public: - V8ClearBreakPointRequest(): V8CommandHandler(QStringLiteral("clearbreakpoint")) {} - - virtual void handleRequest() - { - // decypher the payload: - QJsonObject args = req.value(QStringLiteral("arguments")).toObject(); - if (args.isEmpty()) - return; - - int id = args.value(QStringLiteral("breakpoint")).toInt(-1); - if (id < 0) { - createErrorResponse(QStringLiteral("breakpoint has an invalid number")); - return; - } - - // remove the break point: - debugServicePrivate->debuggerAgent.removeBreakPoint(id); - - // response: - addCommand(); - addRequestSequence(); - addSuccess(true); - addRunning(); - QJsonObject body; - body.insert(QStringLiteral("type"), QStringLiteral("scriptRegExp")); - body.insert(QStringLiteral("breakpoint"), id); - addBody(body); - } -}; - -class V8BacktraceRequest: public V8CommandHandler -{ -public: - V8BacktraceRequest(): V8CommandHandler(QStringLiteral("backtrace")) {} - - virtual void handleRequest() - { - // decypher the payload: - - QJsonObject arguments = req.value(QStringLiteral("arguments")).toObject(); - int fromFrame = arguments.value(QStringLiteral("fromFrame")).toInt(0); - int toFrame = arguments.value(QStringLiteral("toFrame")).toInt(fromFrame + 10); - // no idea what the bottom property is for, so we'll ignore it. - - QV4::Debugging::Debugger *debugger = debugServicePrivate->debuggerAgent.firstDebugger(); - - QJsonArray frameArray; - QVector<QV4::StackFrame> frames = debugger->stackTrace(toFrame); - for (int i = fromFrame; i < toFrame && i < frames.size(); ++i) - frameArray.push_back(debugServicePrivate->buildFrame(frames[i], i, debugger)); - - // response: - addCommand(); - addRequestSequence(); - addSuccess(true); - addRunning(); - QJsonObject body; - if (frameArray.isEmpty()) { - body.insert(QStringLiteral("totalFrames"), 0); - } else { - body.insert(QStringLiteral("fromFrame"), fromFrame); - body.insert(QStringLiteral("toFrame"), fromFrame + frameArray.size()); - body.insert(QStringLiteral("frames"), frameArray); - } - addBody(body); - addRefs(); - } -}; - -class V8FrameRequest: public V8CommandHandler -{ -public: - V8FrameRequest(): V8CommandHandler(QStringLiteral("frame")) {} - - virtual void handleRequest() - { - // decypher the payload: - QJsonObject arguments = req.value(QStringLiteral("arguments")).toObject(); - const int frameNr = arguments.value(QStringLiteral("number")).toInt(debugServicePrivate->selectedFrame()); - - QV4::Debugging::Debugger *debugger = debugServicePrivate->debuggerAgent.firstDebugger(); - QVector<QV4::StackFrame> frames = debugger->stackTrace(frameNr + 1); - if (frameNr < 0 || frameNr >= frames.size()) { - createErrorResponse(QStringLiteral("frame command has invalid frame number")); - return; - } - - debugServicePrivate->selectFrame(frameNr); - QJsonObject frame = debugServicePrivate->buildFrame(frames[frameNr], frameNr, debugger); - - // response: - addCommand(); - addRequestSequence(); - addSuccess(true); - addRunning(); - addBody(frame); - addRefs(); - } -}; - -class V8ScopeRequest: public V8CommandHandler -{ -public: - V8ScopeRequest(): V8CommandHandler(QStringLiteral("scope")) {} - - virtual void handleRequest() - { - // decypher the payload: - QJsonObject arguments = req.value(QStringLiteral("arguments")).toObject(); - const int frameNr = arguments.value(QStringLiteral("frameNumber")).toInt(debugServicePrivate->selectedFrame()); - const int scopeNr = arguments.value(QStringLiteral("number")).toInt(0); - - QV4::Debugging::Debugger *debugger = debugServicePrivate->debuggerAgent.firstDebugger(); - QVector<QV4::StackFrame> frames = debugger->stackTrace(frameNr + 1); - if (frameNr < 0 || frameNr >= frames.size()) { - createErrorResponse(QStringLiteral("scope command has invalid frame number")); - return; - } - if (scopeNr < 0) { - createErrorResponse(QStringLiteral("scope command has invalid scope number")); - return; - } - - QJsonObject scope = debugServicePrivate->buildScope(frameNr, scopeNr, debugger); - - // response: - addCommand(); - addRequestSequence(); - addSuccess(true); - addRunning(); - addBody(scope); - addRefs(); - } -}; - -class V8LookupRequest: public V8CommandHandler -{ -public: - V8LookupRequest(): V8CommandHandler(QStringLiteral("lookup")) {} - - virtual void handleRequest() - { - // decypher the payload: - QJsonObject arguments = req.value(QStringLiteral("arguments")).toObject(); - QJsonArray handles = arguments.value(QStringLiteral("handles")).toArray(); - - QJsonObject body; - foreach (QJsonValue handle, handles) - body[QString::number(handle.toInt())] = debugServicePrivate->lookup(handle.toInt()); - - // response: - addCommand(); - addRequestSequence(); - addSuccess(true); - addRunning(); - addBody(body); - addRefs(); - } -}; - -class V8ContinueRequest: public V8CommandHandler -{ -public: - V8ContinueRequest(): V8CommandHandler(QStringLiteral("continue")) {} - - virtual void handleRequest() - { - // decypher the payload: - QJsonObject arguments = req.value(QStringLiteral("arguments")).toObject(); - - QV4::Debugging::Debugger *debugger = debugServicePrivate->debuggerAgent.firstDebugger(); - - if (arguments.empty()) { - debugger->resume(QV4::Debugging::Debugger::FullThrottle); - } else { - QJsonObject arguments = req.value(QStringLiteral("arguments")).toObject(); - QString stepAction = arguments.value(QStringLiteral("stepaction")).toString(); - const int stepcount = arguments.value(QStringLiteral("stepcount")).toInt(1); - if (stepcount != 1) - qWarning() << "Step count other than 1 is not supported."; - - if (stepAction == QStringLiteral("in")) { - debugger->resume(QV4::Debugging::Debugger::StepIn); - } else if (stepAction == QStringLiteral("out")) { - debugger->resume(QV4::Debugging::Debugger::StepOut); - } else if (stepAction == QStringLiteral("next")) { - debugger->resume(QV4::Debugging::Debugger::StepOver); - } else { - createErrorResponse(QStringLiteral("continue command has invalid stepaction")); - return; - } - } - - // response: - addCommand(); - addRequestSequence(); - addSuccess(true); - addRunning(); - } -}; - -class V8DisconnectRequest: public V8CommandHandler -{ -public: - V8DisconnectRequest(): V8CommandHandler(QStringLiteral("disconnect")) {} - - virtual void handleRequest() - { - debugServicePrivate->debuggerAgent.removeAllBreakPoints(); - debugServicePrivate->debuggerAgent.resumeAll(); - - // response: - addCommand(); - addRequestSequence(); - addSuccess(true); - addRunning(); - } -}; - -class V8SetExceptionBreakRequest: public V8CommandHandler -{ -public: - V8SetExceptionBreakRequest(): V8CommandHandler(QStringLiteral("setexceptionbreak")) {} - - virtual void handleRequest() - { - bool wasEnabled = debugServicePrivate->debuggerAgent.breakOnThrow(); - - //decypher the payload: - QJsonObject arguments = req.value(QStringLiteral("arguments")).toObject(); - QString type = arguments.value(QStringLiteral("type")).toString(); - bool enabled = arguments.value(QStringLiteral("number")).toBool(!wasEnabled); - - if (type == QStringLiteral("all")) { - // that's fine - } else if (type == QStringLiteral("uncaught")) { - createErrorResponse(QStringLiteral("breaking only on uncaught exceptions is not supported yet")); - return; - } else { - createErrorResponse(QStringLiteral("invalid type for break on exception")); - return; - } - - // do it: - debugServicePrivate->debuggerAgent.setBreakOnThrow(enabled); - - QJsonObject body; - body[QLatin1String("type")] = type; - body[QLatin1String("enabled")] = debugServicePrivate->debuggerAgent.breakOnThrow(); - - // response: - addBody(body); - addRunning(); - addSuccess(true); - addRequestSequence(); - addCommand(); - } -}; - -class V8ScriptsRequest: public V8CommandHandler -{ -public: - V8ScriptsRequest(): V8CommandHandler(QStringLiteral("scripts")) {} - - virtual void handleRequest() - { - //decypher the payload: - QJsonObject arguments = req.value(QStringLiteral("arguments")).toObject(); - int types = arguments.value(QStringLiteral("types")).toInt(-1); - if (types < 0 || types > 7) { - createErrorResponse(QStringLiteral("invalid types value in scripts command")); - return; - } else if (types != 4) { - createErrorResponse(QStringLiteral("unsupported types value in scripts command")); - return; - } - - // do it: - debugServicePrivate->debuggerAgent.firstDebugger()->gatherSources(requestSequenceNr()); - - // response will be send by - } -}; - -// Request: -// { -// "seq": 4, -// "type": "request", -// "command": "evaluate", -// "arguments": { -// "expression": "a", -// "frame": 0 -// } -// } -// -// Response: -// { -// "body": { -// "handle": 3, -// "type": "number", -// "value": 1 -// }, -// "command": "evaluate", -// "refs": [], -// "request_seq": 4, -// "running": false, -// "seq": 5, -// "success": true, -// "type": "response" -// } -// -// The "value" key in "body" is the result of evaluating the expression in the request. -class V8EvaluateRequest: public V8CommandHandler -{ -public: - V8EvaluateRequest(): V8CommandHandler(QStringLiteral("evaluate")) {} - - virtual void handleRequest() - { - //decypher the payload: - QJsonObject arguments = req.value(QStringLiteral("arguments")).toObject(); - QString expression = arguments.value(QStringLiteral("expression")).toString(); - const int frame = arguments.value(QStringLiteral("frame")).toInt(0); - - QV4::Debugging::Debugger *debugger = debugServicePrivate->debuggerAgent.firstDebugger(); - Q_ASSERT(debugger->state() == QV4::Debugging::Debugger::Paused); - - VariableCollector *collector = debugServicePrivate->collector(); - QJsonArray dest; - collector->setDestination(&dest); - debugger->evaluateExpression(frame, expression, collector); - - const int ref = dest.at(0).toObject().value(QStringLiteral("value")).toObject() - .value(QStringLiteral("ref")).toInt(); - - // response: - addCommand(); - addRequestSequence(); - addSuccess(true); - addRunning(); - addBody(collector->lookup(ref).toObject()); - addRefs(); - } -}; -} // anonymous namespace - -QV4DebugServicePrivate::QV4DebugServicePrivate() - : debuggerAgent(this) - , version(1) - , theSelectedFrame(0) - , unknownV8CommandHandler(new UnknownV8CommandHandler) -{ - addHandler(new V8VersionRequest); - addHandler(new V8SetBreakPointRequest); - addHandler(new V8ClearBreakPointRequest); - addHandler(new V8BacktraceRequest); - addHandler(new V8FrameRequest); - addHandler(new V8ScopeRequest); - addHandler(new V8LookupRequest); - addHandler(new V8ContinueRequest); - addHandler(new V8DisconnectRequest); - addHandler(new V8SetExceptionBreakRequest); - addHandler(new V8ScriptsRequest); - addHandler(new V8EvaluateRequest); -} - -void QV4DebugServicePrivate::addHandler(V8CommandHandler* handler) -{ - handlers[handler->command()] = handler; -} - -V8CommandHandler *QV4DebugServicePrivate::v8CommandHandler(const QString &command) const -{ - V8CommandHandler *handler = handlers.value(command, 0); - if (handler) - return handler; - else - return unknownV8CommandHandler.data(); -} - -QV4DebugService::QV4DebugService(QObject *parent) - : QQmlConfigurableDebugService(*(new QV4DebugServicePrivate()), - QStringLiteral("V8Debugger"), 1, parent) -{} - -QV4DebugService::~QV4DebugService() -{ -} - -QV4DebugService *QV4DebugService::instance() -{ - return v4ServiceInstance(); -} - -void QV4DebugService::engineAboutToBeAdded(QQmlEngine *engine) -{ - Q_D(QV4DebugService); - QMutexLocker lock(configMutex()); - if (engine) { - QV4::ExecutionEngine *ee = QV8Engine::getV4(engine->handle()); - if (QQmlDebugServer *server = QQmlDebugServer::instance()) { - if (ee) { - ee->enableDebugger(); - QV4::Debugging::Debugger *debugger = ee->debugger; - d->debuggerMap.insert(d->debuggerIndex++, debugger); - d->debuggerAgent.addDebugger(debugger); - d->debuggerAgent.moveToThread(server->thread()); - moveToThread(server->thread()); - } - } - } - QQmlConfigurableDebugService::engineAboutToBeAdded(engine); -} - -void QV4DebugService::engineAboutToBeRemoved(QQmlEngine *engine) -{ - Q_D(QV4DebugService); - QMutexLocker lock(configMutex()); - if (engine){ - const QV4::ExecutionEngine *ee = QV8Engine::getV4(engine->handle()); - if (ee) { - QV4::Debugging::Debugger *debugger = ee->debugger; - typedef QMap<int, QV4::Debugging::Debugger *>::const_iterator DebuggerMapIterator; - const DebuggerMapIterator end = d->debuggerMap.constEnd(); - for (DebuggerMapIterator i = d->debuggerMap.constBegin(); i != end; ++i) { - if (i.value() == debugger) { - d->debuggerMap.remove(i.key()); - break; - } - } - d->debuggerAgent.removeDebugger(debugger); - } - } - QQmlConfigurableDebugService::engineAboutToBeRemoved(engine); -} - -void QV4DebugService::signalEmitted(const QString &signal) -{ - //This function is only called by QQmlBoundSignal - //only if there is a slot connected to the signal. Hence, there - //is no need for additional check. - Q_D(QV4DebugService); - - //Parse just the name and remove the class info - //Normalize to Lower case. - QString signalName = signal.left(signal.indexOf(QLatin1Char('('))).toLower(); - - foreach (const QString &signal, d->breakOnSignals) { - if (signal == signalName) { - // TODO: pause debugger - break; - } - } -} - -void QV4DebugService::messageReceived(const QByteArray &message) -{ - Q_D(QV4DebugService); - QMutexLocker lock(configMutex()); - - QQmlDebugStream ms(message); - QByteArray header; - ms >> header; - - TRACE_PROTOCOL(qDebug() << "received message with header" << header); - - if (header == "V8DEBUG") { - QByteArray type; - QByteArray payload; - ms >> type >> payload; - TRACE_PROTOCOL(qDebug() << "... type:" << type); - - if (type == V4_CONNECT) { - sendMessage(d->packMessage(type)); - stopWaiting(); - } else if (type == V4_PAUSE) { - d->debuggerAgent.pauseAll(); - sendSomethingToSomebody(type); - } else if (type == V4_BREAK_ON_SIGNAL) { - QByteArray signal; - bool enabled; - ms >> signal >> enabled; - //Normalize to lower case. - QString signalName(QString::fromUtf8(signal).toLower()); - if (enabled) - d->breakOnSignals.append(signalName); - else - d->breakOnSignals.removeOne(signalName); - } else if (type == "v8request") { - handleV8Request(payload); - } else if (type == V4_DISCONNECT) { - TRACE_PROTOCOL(qDebug() << "... payload:" << payload); - handleV8Request(payload); - } else { - sendSomethingToSomebody(type, 0); - } - } -} - -void QV4DebugService::sendSomethingToSomebody(const char *type, int magicNumber) -{ - Q_D(QV4DebugService); - - QByteArray response; - QQmlDebugStream rs(&response, QIODevice::WriteOnly); - rs << QByteArray(type) - << QByteArray::number(d->version) << QByteArray::number(magicNumber); - sendMessage(d->packMessage(type, response)); -} - -void QV4DebuggerAgent::debuggerPaused(QV4::Debugging::Debugger *debugger, QV4::Debugging::PauseReason reason) -{ - Q_UNUSED(reason); - - debugServicePrivate->clearHandles(debugger->engine()); - - QJsonObject event, body, script; - event.insert(QStringLiteral("type"), QStringLiteral("event")); - - switch (reason) { - case QV4::Debugging::Step: - case QV4::Debugging::PauseRequest: - case QV4::Debugging::BreakPoint: { - event.insert(QStringLiteral("event"), QStringLiteral("break")); - QVector<QV4::StackFrame> frames = debugger->stackTrace(1); - if (frames.isEmpty()) - break; - - const QV4::StackFrame &topFrame = frames.first(); - body.insert(QStringLiteral("invocationText"), topFrame.function); - body.insert(QStringLiteral("sourceLine"), topFrame.line - 1); - if (topFrame.column > 0) - body.insert(QStringLiteral("sourceColumn"), topFrame.column); - QJsonArray breakPoints; - foreach (int breakPointId, breakPointIds(topFrame.source, topFrame.line)) - breakPoints.push_back(breakPointId); - body.insert(QStringLiteral("breakpoints"), breakPoints); - script.insert(QStringLiteral("name"), topFrame.source); - } break; - case QV4::Debugging::Throwing: - // TODO: complete this! - event.insert(QStringLiteral("event"), QStringLiteral("exception")); - break; - } - - if (!script.isEmpty()) - body.insert(QStringLiteral("script"), script); - if (!body.isEmpty()) - event.insert(QStringLiteral("body"), body); - debugServicePrivate->send(event); -} - -void QV4DebuggerAgent::sourcesCollected(QV4::Debugging::Debugger *debugger, QStringList sources, int requestSequenceNr) -{ - QJsonArray body; - foreach (const QString source, sources) { - QJsonObject src; - src[QLatin1String("name")] = source; - src[QLatin1String("scriptType")] = 4; - body.append(src); - } - - QJsonObject response; - response[QLatin1String("success")] = true; - response[QLatin1String("running")] = debugger->state() == QV4::Debugging::Debugger::Running; - response[QLatin1String("body")] = body; - response[QLatin1String("command")] = QStringLiteral("scripts"); - response[QLatin1String("request_seq")] = requestSequenceNr; - response[QLatin1String("type")] = QStringLiteral("response"); - debugServicePrivate->send(response); -} - -void QV4DebugService::handleV8Request(const QByteArray &payload) -{ - Q_D(QV4DebugService); - - TRACE_PROTOCOL(qDebug() << "v8request, payload:" << payload); - - QJsonDocument request = QJsonDocument::fromJson(payload); - QJsonObject o = request.object(); - QJsonValue type = o.value(QStringLiteral("type")); - if (type.toString() == QStringLiteral("request")) { - QJsonValue command = o.value(QStringLiteral("command")); - V8CommandHandler *h = d->v8CommandHandler(command.toString()); - if (h) - h->handle(o, this, d); - } -} - -QT_END_NAMESPACE |