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/****************************************************************************
**
** Copyright (C) 2021 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtQml module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** 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 https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
****************************************************************************/
#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)
{}
QV4Debugger *QV4DebuggerAgent::pausedDebugger() const
{
for (QV4Debugger *debugger : m_debuggers) {
if (debugger->state() == QV4Debugger::Paused)
return debugger;
}
return nullptr;
}
bool QV4DebuggerAgent::isRunning() const
{
// "running" means none of the engines are paused.
return pausedDebugger() == nullptr;
}
void QV4DebuggerAgent::debuggerPaused(QV4Debugger *debugger, QV4Debugger::PauseReason reason)
{
Q_UNUSED(reason);
debugger->collector()->clear();
QJsonObject event, body, script;
event.insert(QStringLiteral("type"), QStringLiteral("event"));
switch (reason) {
case QV4Debugger::Step:
case QV4Debugger::PauseRequest:
case QV4Debugger::BreakPointHit: {
event.insert(QStringLiteral("event"), QStringLiteral("break"));
QV4::CppStackFrame *frame = debugger->engine()->currentStackFrame;
if (!frame)
break;
body.insert(QStringLiteral("invocationText"), frame->function());
body.insert(QStringLiteral("sourceLine"), qAbs(frame->lineNumber()) - 1);
// if (frame->column > 0)
// body.insert(QStringLiteral("sourceColumn"), frame->column);
QJsonArray breakPoints;
foreach (int breakPointId, breakPointIds(frame->source(), frame->lineNumber()))
breakPoints.push_back(breakPointId);
body.insert(QStringLiteral("breakpoints"), breakPoints);
script.insert(QStringLiteral("name"), frame->source());
} break;
case QV4Debugger::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::addDebugger(QV4Debugger *debugger)
{
Q_ASSERT(!m_debuggers.contains(debugger));
m_debuggers << debugger;
debugger->setBreakOnThrow(m_breakOnThrow);
for (const BreakPoint &breakPoint : qAsConst(m_breakPoints))
if (breakPoint.enabled)
debugger->addBreakPoint(breakPoint.fileName, breakPoint.lineNr, breakPoint.condition);
connect(debugger, &QObject::destroyed, this, &QV4DebuggerAgent::handleDebuggerDeleted);
connect(debugger, &QV4Debugger::debuggerPaused, this, &QV4DebuggerAgent::debuggerPaused,
Qt::QueuedConnection);
}
void QV4DebuggerAgent::removeDebugger(QV4Debugger *debugger)
{
m_debuggers.removeAll(debugger);
disconnect(debugger, &QObject::destroyed, this, &QV4DebuggerAgent::handleDebuggerDeleted);
disconnect(debugger, &QV4Debugger::debuggerPaused, this, &QV4DebuggerAgent::debuggerPaused);
}
const QList<QV4Debugger *> &QV4DebuggerAgent::debuggers()
{
return m_debuggers;
}
void QV4DebuggerAgent::handleDebuggerDeleted(QObject *debugger)
{
m_debuggers.removeAll(static_cast<QV4Debugger *>(debugger));
}
void QV4DebuggerAgent::pause(QV4Debugger *debugger) const
{
debugger->pause();
}
void QV4DebuggerAgent::pauseAll() const
{
for (QV4Debugger *debugger : m_debuggers)
pause(debugger);
}
void QV4DebuggerAgent::resumeAll() const
{
for (QV4Debugger *debugger : m_debuggers)
if (debugger->state() == QV4Debugger::Paused)
debugger->resume(QV4Debugger::FullThrottle);
}
int QV4DebuggerAgent::addBreakPoint(const QString &fileName, int lineNumber, bool enabled, const QString &condition)
{
if (enabled)
for (QV4Debugger *debugger : qAsConst(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)
for (QV4Debugger *debugger : qAsConst(m_debuggers))
debugger->removeBreakPoint(breakPoint.fileName, breakPoint.lineNr);
}
void QV4DebuggerAgent::removeAllBreakPoints()
{
for (auto it = m_breakPoints.keyBegin(), end = m_breakPoints.keyEnd(); it != end; ++it)
removeBreakPoint(*it);
}
void QV4DebuggerAgent::enableBreakPoint(int id, bool onoff)
{
BreakPoint &breakPoint = m_breakPoints[id];
if (!breakPoint.isValid() || breakPoint.enabled == onoff)
return;
breakPoint.enabled = onoff;
for (QV4Debugger *debugger : qAsConst(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;
for (QV4Debugger *debugger : qAsConst(m_debuggers))
debugger->setBreakOnThrow(onoff);
}
}
void QV4DebuggerAgent::clearAllPauseRequests()
{
for (QV4Debugger *debugger : qAsConst(m_debuggers))
debugger->clearPauseRequest();
}
QT_END_NAMESPACE
#include "moc_qv4debuggeragent.cpp"
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