diff options
Diffstat (limited to 'src/plugins/qmltooling/qmldbg_debugger/qv4debuggeragent.cpp')
| -rw-r--r-- | src/plugins/qmltooling/qmldbg_debugger/qv4debuggeragent.cpp | 253 |
1 files changed, 253 insertions, 0 deletions
diff --git a/src/plugins/qmltooling/qmldbg_debugger/qv4debuggeragent.cpp b/src/plugins/qmltooling/qmldbg_debugger/qv4debuggeragent.cpp new file mode 100644 index 0000000000..e33595c629 --- /dev/null +++ b/src/plugins/qmltooling/qmldbg_debugger/qv4debuggeragent.cpp @@ -0,0 +1,253 @@ +/**************************************************************************** +** +** 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 "qv4debuggeragent.h" +#include "qv4debugservice.h" +#include "qv4datacollector.h" + +#include <QtCore/qjsonobject.h> +#include <QtCore/qjsonarray.h> + +QT_BEGIN_NAMESPACE + +QV4DebuggerAgent::QV4DebuggerAgent(QV4DebugServiceImpl *debugService) + : m_breakOnThrow(false), m_debugService(debugService) +{} + +QV4::Debugging::V4Debugger *QV4DebuggerAgent::firstDebugger() const +{ + // Currently only 1 single engine is supported, so: + if (m_debuggers.isEmpty()) + return 0; + else + return m_debuggers.first(); +} + +bool QV4DebuggerAgent::isRunning() const +{ + // Currently only 1 single engine is supported, so: + if (QV4::Debugging::V4Debugger *debugger = firstDebugger()) + return debugger->state() == QV4::Debugging::V4Debugger::Running; + else + return false; +} + +void QV4DebuggerAgent::debuggerPaused(QV4::Debugging::V4Debugger *debugger, + QV4::Debugging::PauseReason reason) +{ + Q_UNUSED(reason); + + m_debugService->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); + m_debugService->send(event); +} + +void QV4DebuggerAgent::sourcesCollected(QV4::Debugging::V4Debugger *debugger, + const 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::V4Debugger::Running; + response[QLatin1String("body")] = body; + response[QLatin1String("command")] = QStringLiteral("scripts"); + response[QLatin1String("request_seq")] = requestSequenceNr; + response[QLatin1String("type")] = QStringLiteral("response"); + m_debugService->send(response); +} + +void QV4DebuggerAgent::addDebugger(QV4::Debugging::V4Debugger *debugger) +{ + Q_ASSERT(!m_debuggers.contains(debugger)); + m_debuggers << debugger; + + debugger->setBreakOnThrow(m_breakOnThrow); + + foreach (const BreakPoint &breakPoint, m_breakPoints.values()) + if (breakPoint.enabled) + debugger->addBreakPoint(breakPoint.fileName, breakPoint.lineNr, breakPoint.condition); + + connect(debugger, SIGNAL(destroyed(QObject*)), + this, SLOT(handleDebuggerDeleted(QObject*))); + connect(debugger, SIGNAL(sourcesCollected(QV4::Debugging::V4Debugger*,QStringList,int)), + this, SLOT(sourcesCollected(QV4::Debugging::V4Debugger*,QStringList,int)), + Qt::QueuedConnection); + connect(debugger, + SIGNAL(debuggerPaused(QV4::Debugging::V4Debugger*,QV4::Debugging::PauseReason)), + this, SLOT(debuggerPaused(QV4::Debugging::V4Debugger*,QV4::Debugging::PauseReason)), + Qt::QueuedConnection); +} + +void QV4DebuggerAgent::removeDebugger(QV4::Debugging::V4Debugger *debugger) +{ + m_debuggers.removeAll(debugger); + disconnect(debugger, SIGNAL(destroyed(QObject*)), + this, SLOT(handleDebuggerDeleted(QObject*))); + disconnect(debugger, SIGNAL(sourcesCollected(QV4::Debugging::V4Debugger*,QStringList,int)), + this, SLOT(sourcesCollected(QV4::Debugging::V4Debugger*,QStringList,int))); + disconnect(debugger, + SIGNAL(debuggerPaused(QV4::Debugging::V4Debugger*,QV4::Debugging::PauseReason)), + this, + SLOT(debuggerPaused(QV4::Debugging::V4Debugger*,QV4::Debugging::PauseReason))); +} + +void QV4DebuggerAgent::handleDebuggerDeleted(QObject *debugger) +{ + m_debuggers.removeAll(static_cast<QV4::Debugging::V4Debugger *>(debugger)); +} + +void QV4DebuggerAgent::pause(QV4::Debugging::V4Debugger *debugger) const +{ + debugger->pause(); +} + +void QV4DebuggerAgent::pauseAll() const +{ + foreach (QV4::Debugging::V4Debugger *debugger, m_debuggers) + pause(debugger); +} + +void QV4DebuggerAgent::resumeAll() const +{ + foreach (QV4::Debugging::V4Debugger *debugger, m_debuggers) + if (debugger->state() == QV4::Debugging::V4Debugger::Paused) + debugger->resume(QV4::Debugging::V4Debugger::FullThrottle); +} + +int QV4DebuggerAgent::addBreakPoint(const QString &fileName, int lineNumber, bool enabled, const QString &condition) +{ + if (enabled) + foreach (QV4::Debugging::V4Debugger *debugger, m_debuggers) + debugger->addBreakPoint(fileName, lineNumber, condition); + + int id = m_breakPoints.size(); + m_breakPoints.insert(id, BreakPoint(fileName, lineNumber, enabled, condition)); + return id; +} + +void QV4DebuggerAgent::removeBreakPoint(int id) +{ + BreakPoint breakPoint = m_breakPoints.value(id); + if (!breakPoint.isValid()) + return; + + m_breakPoints.remove(id); + + if (breakPoint.enabled) + foreach (QV4::Debugging::V4Debugger *debugger, m_debuggers) + debugger->removeBreakPoint(breakPoint.fileName, breakPoint.lineNr); +} + +void QV4DebuggerAgent::removeAllBreakPoints() +{ + QList<int> ids = m_breakPoints.keys(); + foreach (int id, ids) + removeBreakPoint(id); +} + +void QV4DebuggerAgent::enableBreakPoint(int id, bool onoff) +{ + BreakPoint &breakPoint = m_breakPoints[id]; + if (!breakPoint.isValid() || breakPoint.enabled == onoff) + return; + breakPoint.enabled = onoff; + + foreach (QV4::Debugging::V4Debugger *debugger, m_debuggers) { + if (onoff) + debugger->addBreakPoint(breakPoint.fileName, breakPoint.lineNr, breakPoint.condition); + else + debugger->removeBreakPoint(breakPoint.fileName, breakPoint.lineNr); + } +} + +QList<int> QV4DebuggerAgent::breakPointIds(const QString &fileName, int lineNumber) const +{ + QList<int> ids; + + for (QHash<int, BreakPoint>::const_iterator i = m_breakPoints.begin(), ei = m_breakPoints.end(); i != ei; ++i) + if (i->lineNr == lineNumber && fileName.endsWith(i->fileName)) + ids.push_back(i.key()); + + return ids; +} + +void QV4DebuggerAgent::setBreakOnThrow(bool onoff) +{ + if (onoff != m_breakOnThrow) { + m_breakOnThrow = onoff; + foreach (QV4::Debugging::V4Debugger *debugger, m_debuggers) + debugger->setBreakOnThrow(onoff); + } +} + +QT_END_NAMESPACE |