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Script: Some refactoring.

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This commit is contained in:
Friedemann Kleint
2010-01-15 17:30:26 +01:00
parent 96e31c2a0f
commit 1855316aaa
5 changed files with 163 additions and 95 deletions
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204
src/plugins/debugger/script/scriptengine.cpp
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@@ -45,6 +45,8 @@
#include <texteditor/itexteditor.h>
#include <coreplugin/ifile.h>
#include <coreplugin/scriptmanager/scriptmanager.h>
#include <coreplugin/icore.h>
#include <QtCore/QDateTime>
#include <QtCore/QDebug>
@@ -64,7 +66,7 @@
#include <QtScript/QScriptValue>
#include <QtScript/QScriptValueIterator>
//#define DEBUG_SCRIPT 1
// #define DEBUG_SCRIPT 1
#if DEBUG_SCRIPT
# define SDEBUG(s) qDebug() << s
#else
@@ -124,7 +126,10 @@ void ScriptAgent::exceptionCatch(qint64 scriptId, const QScriptValue & exception
{
Q_UNUSED(scriptId)
Q_UNUSED(exception)
SDEBUG("ScriptAgent::exceptionCatch: " << scriptId << &exception);
const QString msg = QString::fromLatin1("An exception was caught on %1: '%2'").
arg(scriptId).arg(exception.toString());
SDEBUG(msg);
q->showDebuggerOutput(LogMisc, msg);
}
void ScriptAgent::exceptionThrow(qint64 scriptId, const QScriptValue &exception,
@@ -133,21 +138,26 @@ void ScriptAgent::exceptionThrow(qint64 scriptId, const QScriptValue &exception,
Q_UNUSED(scriptId)
Q_UNUSED(exception)
Q_UNUSED(hasHandler)
SDEBUG("ScriptAgent::exceptionThrow: " << scriptId << &exception
<< hasHandler);
const QString msg = QString::fromLatin1("An exception occurred on %1: '%2'").
arg(scriptId).arg(exception.toString());
SDEBUG(msg);
q->showDebuggerOutput(LogMisc, msg);
}
void ScriptAgent::functionEntry(qint64 scriptId)
{
Q_UNUSED(scriptId)
q->maybeBreakNow(true);
q->showDebuggerOutput(LogMisc, QString::fromLatin1("Function entry occurred on %1").arg(scriptId));
q->checkForBreakCondition(true);
}
void ScriptAgent::functionExit(qint64 scriptId, const QScriptValue &returnValue)
{
Q_UNUSED(scriptId)
Q_UNUSED(returnValue)
SDEBUG("ScriptAgent::functionExit: " << scriptId << &returnValue);
const QString msg = QString::fromLatin1("Function exit occurred on %1: '%2'").arg(scriptId).arg(returnValue.toString());
SDEBUG(msg);
q->showDebuggerOutput(LogMisc, msg);
}
void ScriptAgent::positionChange(qint64 scriptId, int lineNumber, int columnNumber)
@@ -156,7 +166,7 @@ void ScriptAgent::positionChange(qint64 scriptId, int lineNumber, int columnNumb
Q_UNUSED(scriptId)
Q_UNUSED(lineNumber)
Q_UNUSED(columnNumber)
q->maybeBreakNow(false);
q->checkForBreakCondition(false);
}
void ScriptAgent::scriptLoad(qint64 scriptId, const QString &program,
@@ -166,8 +176,7 @@ void ScriptAgent::scriptLoad(qint64 scriptId, const QString &program,
Q_UNUSED(program)
Q_UNUSED(fileName)
Q_UNUSED(baseLineNumber)
SDEBUG("ScriptAgent::scriptLoad: " << program << fileName
<< baseLineNumber);
q->showDebuggerOutput(LogMisc, QString::fromLatin1("Loaded: %1 id: %2").arg(fileName).arg(scriptId));
}
void ScriptAgent::scriptUnload(qint64 scriptId)
@@ -186,9 +195,6 @@ void ScriptAgent::scriptUnload(qint64 scriptId)
ScriptEngine::ScriptEngine(DebuggerManager *manager)
: IDebuggerEngine(manager)
{
// created in startDebugger()
m_scriptEngine = 0;
m_scriptAgent = 0;
}
ScriptEngine::~ScriptEngine()
@@ -208,30 +214,45 @@ void ScriptEngine::shutdown()
void ScriptEngine::exitDebugger()
{
if (state() == DebuggerNotReady)
return;
SDEBUG("ScriptEngine::exitDebugger()");
m_stopped = false;
m_stopOnNextLine = false;
m_scriptEngine->abortEvaluation();
manager()->notifyInferiorExited();
if (m_scriptEngine->isEvaluating())
m_scriptEngine->abortEvaluation();
setState(InferiorShuttingDown);
setState(InferiorShutDown);
setState(EngineShuttingDown);
m_scriptEngine->setAgent(0);
setState(DebuggerNotReady);
}
void ScriptEngine::startDebugger(const DebuggerStartParametersPtr &sp)
{
if (!m_scriptEngine)
m_scriptEngine = new QScriptEngine(this);
setState(AdapterStarting);
if (m_scriptEngine.isNull())
m_scriptEngine = Core::ICore::instance()->scriptManager()->scriptEngine();
if (!m_scriptAgent)
m_scriptAgent = new ScriptAgent(this, m_scriptEngine);
m_scriptEngine->setAgent(m_scriptAgent);
m_scriptAgent.reset(new ScriptAgent(this, m_scriptEngine.data()));
m_scriptEngine->setAgent(m_scriptAgent.data());
/* Keep the gui alive (have the engine call processEvents() while the script
* is run in the foreground). */
m_scriptEngine->setProcessEventsInterval(1 /*ms*/);
m_stopped = false;
m_stopOnNextLine = false;
m_scriptEngine->abortEvaluation();
QFileInfo fi(sp->executable);
m_scriptFileName = fi.absoluteFilePath();
setState(AdapterStarted);
setState(InferiorStarting);
m_scriptFileName = QFileInfo (sp->executable).absoluteFilePath();
QFile scriptFile(m_scriptFileName);
if (!scriptFile.open(QIODevice::ReadOnly)) {
if (!scriptFile.open(QIODevice::ReadOnly|QIODevice::Text)) {
manager()->showDebuggerOutput(LogError, QString::fromLatin1("Cannot open %1: %2").
arg(m_scriptFileName, scriptFile.errorString()));
emit startFailed();
return;
}
@@ -241,6 +262,7 @@ void ScriptEngine::startDebugger(const DebuggerStartParametersPtr &sp)
attemptBreakpointSynchronization();
setState(InferiorRunningRequested);
showStatusMessage(tr("Running requested..."), 5000);
manager()->showDebuggerOutput(LogMisc, QLatin1String("Running: ") + m_scriptFileName);
QTimer::singleShot(0, this, SLOT(runInferior()));
emit startSuccessful();
}
@@ -252,34 +274,28 @@ void ScriptEngine::continueInferior()
m_stopOnNextLine = false;
}
void ScriptEngine::runInferior()
static const char *qtExtensionsC[] = {
"qt.core", "qt.gui", "qt.xml", "qt.svg", "qt.network",
"qt.sql", "qt.opengl", "qt.webkit", "qt.xmlpatterns", "qt.uitools"
};
bool ScriptEngine::importExtensions()
{
//QDir dir(QApplication::applicationDirPath());
//if (dir.dirName() == QLatin1String("debug") || dir.dirName() == QLatin1String("release"))
// dir.cdUp();
//dir.cdUp();
//dir.cdUp();
SDEBUG("ScriptEngine::importExtensions()");
QStringList extensions;
const int extCount = sizeof(qtExtensionsC)/sizeof(const char *);
for (int e = 0; e < extCount; e++)
extensions.append(QLatin1String(qtExtensionsC[e]));
if (m_scriptEngine->importedExtensions().contains(extensions.front()))
return true;
QDir dir("/home/apoenitz/dev/qtscriptgenerator");
if (!dir.cd("plugins")) {
fprintf(stderr, "plugins folder does not exist -- did you build the bindings?\n");
return;
return false;
}
QStringList paths = qApp->libraryPaths();
paths << dir.absolutePath();
qApp->setLibraryPaths(paths);
SDEBUG("ScriptEngine::runInferior()");
QStringList extensions;
extensions << "qt.core"
<< "qt.gui"
<< "qt.xml"
<< "qt.svg"
<< "qt.network"
<< "qt.sql"
<< "qt.opengl"
<< "qt.webkit"
<< "qt.xmlpatterns"
<< "qt.uitools";
QStringList failExtensions;
foreach (const QString &ext, extensions) {
QScriptValue ret = m_scriptEngine->importExtension(ext);
@@ -302,8 +318,26 @@ void ScriptEngine::runInferior()
qPrintable(failExtensions.join(", ")), qPrintable(dir.absolutePath()));
}
}
return failExtensions.isEmpty();
}
QScriptValue result = m_scriptEngine->evaluate(m_scriptContents, m_scriptFileName);
void ScriptEngine::runInferior()
{
SDEBUG("ScriptEngine::runInferior()");
importExtensions();
setState(InferiorRunning);
const QScriptValue result = m_scriptEngine->evaluate(m_scriptContents, m_scriptFileName);
setState(InferiorStopping);
setState(InferiorStopped);
if (m_scriptEngine->hasUncaughtException()) {
QString msg = QString::fromLatin1("An exception occurred during execution at line: %1\n%2\n").
arg(m_scriptEngine->uncaughtExceptionLineNumber()).arg(m_scriptEngine->uncaughtException().toString());
msg += m_scriptEngine->uncaughtExceptionBacktrace().join(QString(QLatin1Char('\n')));
showDebuggerOutput(LogMisc, msg);
} else {
showDebuggerOutput(LogMisc, QString::fromLatin1("Evaluation returns '%1'").arg(result.toString()));
}
exitDebugger();
}
void ScriptEngine::interruptInferior()
@@ -427,6 +461,7 @@ QList<Symbol> ScriptEngine::moduleSymbols(const QString & /*moduleName*/)
//
//////////////////////////////////////////////////////////////////////
static WatchData m_toolTip;
static QPoint m_toolTipPos;
static QHash<QString, WatchData> m_toolTipCache;
@@ -521,44 +556,55 @@ void ScriptEngine::assignValueInDebugger(const QString &expression,
updateLocals();
}
void ScriptEngine::maybeBreakNow(bool byFunction)
static BreakpointData *findBreakPointByFunction(BreakHandler *handler,
const QString &functionName)
{
QScriptContext *context = m_scriptEngine->currentContext();
QScriptContextInfo info(context);
const int count = handler->size();
for (int b = 0; b < count; b++) {
BreakpointData *data = handler->at(b);
if (data->funcName == functionName)
return data;
}
return 0;
}
static BreakpointData *findBreakPointByFileName(BreakHandler *handler,
int lineNumber,
const QString &fileName)
{
const int count = handler->size();
for (int b = 0; b < count; b++) {
BreakpointData *data = handler->at(b);
if (lineNumber == data->lineNumber.toInt() && fileName == data->fileName)
return data;
}
return 0;
}
bool ScriptEngine::checkForBreakCondition(bool byFunction)
{
const QScriptContext *context = m_scriptEngine->currentContext();
const QScriptContextInfo info(context);
//
// Update breakpoints
//
QString functionName = info.functionName();
QString fileName = info.fileName();
int lineNumber = info.lineNumber();
if (byFunction)
lineNumber = info.functionStartLineNumber();
BreakHandler *handler = manager()->breakHandler();
const QString functionName = info.functionName();
const QString fileName = info.fileName();
const int lineNumber = byFunction? info.functionStartLineNumber() : info.lineNumber();
SDEBUG("checkForBreakCondition" << byFunction << functionName << lineNumber << fileName);
if (m_stopOnNextLine) {
// Interrupt inferior
m_stopOnNextLine = false;
} else {
int index = 0;
for (; index != handler->size(); ++index) {
BreakpointData *data = handler->at(index);
if (byFunction) {
if (!functionName.isEmpty() && data->funcName == functionName)
break;
} else {
if (info.lineNumber() == data->lineNumber.toInt()
&& fileName == data->fileName)
break;
}
}
if (index == handler->size())
return;
if (byFunction && functionName.isEmpty())
return false;
BreakpointData *data = byFunction ?
findBreakPointByFunction(manager()->breakHandler(), functionName) :
findBreakPointByFileName(manager()->breakHandler(), lineNumber, fileName);
if (!data)
return false;
// we just run into a breakpoint
//SDEBUG("RESOLVING BREAKPOINT AT " << fileName << lineNumber);
BreakpointData *data = handler->at(index);
data->bpLineNumber = QByteArray::number(lineNumber);
data->bpFileName = fileName;
data->bpFuncName = functionName;
@@ -567,15 +613,17 @@ void ScriptEngine::maybeBreakNow(bool byFunction)
data->pending = false;
data->updateMarker();
}
setState(InferiorStopping);
setState(InferiorStopped);
showStatusMessage(tr("Stopped."), 5000);
SDEBUG("Stopped at " << lineNumber << fileName);
showStatusMessage(tr("Stopped at %1:%2.").arg(fileName).arg(lineNumber), 5000);
StackFrame frame;
frame.file = fileName;
frame.line = lineNumber;
manager()->gotoLocation(frame, true);
updateLocals();
return true;
}
void ScriptEngine::updateLocals()
@@ -590,7 +638,7 @@ void ScriptEngine::updateLocals()
QList<StackFrame> stackFrames;
int i = 0;
for (QScriptContext *c = context; c; c = c->parentContext(), ++i) {
QScriptContextInfo info(c);
const QScriptContextInfo info(c);
StackFrame frame;
frame.level = i;
frame.file = info.fileName();
@@ -598,9 +646,8 @@ void ScriptEngine::updateLocals()
frame.from = QString::number(info.functionStartLineNumber());
frame.to = QString::number(info.functionEndLineNumber());
frame.line = info.lineNumber();
if (frame.function.isEmpty())
frame.function = "<global scope>";
frame.function = QLatin1String("<global scope>");
//frame.address = ...;
stackFrames.append(frame);
}
@@ -736,6 +783,11 @@ void ScriptEngine::updateSubItem(const WatchData &data0)
QTC_ASSERT(false, return);
}
void ScriptEngine::showDebuggerOutput(int channel, const QString &m)
{
manager()->showDebuggerOutput(channel, m);
}
IDebuggerEngine *createScriptEngine(DebuggerManager *manager)
{
return new ScriptEngine(manager);