void ScriptDebuggerPrivate::exceptionThrow(qint64 /*scriptId*/,
const QScriptValue &exception,
bool hasHandler)
{
if (!hasHandler) {
errorMessage(QString::fromLatin1("uncaught exception: %0").arg(exception.toString()));
QScriptContext *ctx = engine()->currentContext();
int lineNumber = QScriptContextInfo(ctx).lineNumber();
ScriptInfo *info = scriptInfo(ctx);
QString lineText = info ? info->lineText(lineNumber) : QString("(no source text available)");
message(QString::fromLatin1("%0\t%1").arg(lineNumber).arg(lineText));
interactive();
}
}
/*!
Applies the given \a command to the given \a backend.
*/
QScriptDebuggerResponse QScriptDebuggerCommandExecutor::execute(
QScriptDebuggerBackend *backend,
const QScriptDebuggerCommand &command)
{
QScriptDebuggerResponse response;
switch (command.type()) {
case QScriptDebuggerCommand::None:
break;
case QScriptDebuggerCommand::Interrupt:
backend->interruptEvaluation();
break;
case QScriptDebuggerCommand::Continue:
if (backend->engine()->isEvaluating()) {
backend->continueEvalution();
response.setAsync(true);
}
break;
case QScriptDebuggerCommand::StepInto: {
QVariant attr = command.attribute(QScriptDebuggerCommand::StepCount);
int count = attr.isValid() ? attr.toInt() : 1;
backend->stepInto(count);
response.setAsync(true);
} break;
case QScriptDebuggerCommand::StepOver: {
QVariant attr = command.attribute(QScriptDebuggerCommand::StepCount);
int count = attr.isValid() ? attr.toInt() : 1;
backend->stepOver(count);
response.setAsync(true);
} break;
case QScriptDebuggerCommand::StepOut:
backend->stepOut();
response.setAsync(true);
break;
case QScriptDebuggerCommand::RunToLocation:
backend->runToLocation(command.fileName(), command.lineNumber());
response.setAsync(true);
break;
case QScriptDebuggerCommand::RunToLocationByID:
backend->runToLocation(command.scriptId(), command.lineNumber());
response.setAsync(true);
break;
case QScriptDebuggerCommand::ForceReturn: {
int contextIndex = command.contextIndex();
QScriptDebuggerValue value = command.scriptValue();
QScriptEngine *engine = backend->engine();
QScriptValue realValue = value.toScriptValue(engine);
backend->returnToCaller(contextIndex, realValue);
response.setAsync(true);
} break;
case QScriptDebuggerCommand::Resume:
backend->resume();
response.setAsync(true);
break;
case QScriptDebuggerCommand::SetBreakpoint: {
QScriptBreakpointData data = command.breakpointData();
if (!data.isValid())
data = QScriptBreakpointData(command.fileName(), command.lineNumber());
int id = backend->setBreakpoint(data);
response.setResult(id);
} break;
case QScriptDebuggerCommand::DeleteBreakpoint: {
int id = command.breakpointId();
if (!backend->deleteBreakpoint(id))
response.setError(QScriptDebuggerResponse::InvalidBreakpointID);
} break;
case QScriptDebuggerCommand::DeleteAllBreakpoints:
backend->deleteAllBreakpoints();
break;
case QScriptDebuggerCommand::GetBreakpoints: {
QScriptBreakpointMap bps = backend->breakpoints();
if (!bps.isEmpty())
response.setResult(bps);
} break;
case QScriptDebuggerCommand::GetBreakpointData: {
int id = command.breakpointId();
QScriptBreakpointData data = backend->breakpointData(id);
if (data.isValid())
response.setResult(data);
else
response.setError(QScriptDebuggerResponse::InvalidBreakpointID);
} break;
case QScriptDebuggerCommand::SetBreakpointData: {
int id = command.breakpointId();
QScriptBreakpointData data = command.breakpointData();
if (!backend->setBreakpointData(id, data))
response.setError(QScriptDebuggerResponse::InvalidBreakpointID);
} break;
case QScriptDebuggerCommand::GetScripts: {
QScriptScriptMap scripts = backend->scripts();
if (!scripts.isEmpty())
response.setResult(scripts);
} break;
case QScriptDebuggerCommand::GetScriptData: {
qint64 id = command.scriptId();
QScriptScriptData data = backend->scriptData(id);
if (data.isValid())
response.setResult(data);
else
response.setError(QScriptDebuggerResponse::InvalidScriptID);
} break;
case QScriptDebuggerCommand::ScriptsCheckpoint:
backend->scriptsCheckpoint();
response.setResult(QVariant::fromValue(backend->scriptsDelta()));
break;
case QScriptDebuggerCommand::GetScriptsDelta:
response.setResult(QVariant::fromValue(backend->scriptsDelta()));
break;
case QScriptDebuggerCommand::ResolveScript:
response.setResult(backend->resolveScript(command.fileName()));
break;
case QScriptDebuggerCommand::GetBacktrace:
response.setResult(backend->backtrace());
break;
case QScriptDebuggerCommand::GetContextCount:
response.setResult(backend->contextCount());
break;
case QScriptDebuggerCommand::GetContextState: {
QScriptContext *ctx = backend->context(command.contextIndex());
if (ctx)
response.setResult(static_cast<int>(ctx->state()));
else
response.setError(QScriptDebuggerResponse::InvalidContextIndex);
} break;
case QScriptDebuggerCommand::GetContextID: {
int idx = command.contextIndex();
if ((idx >= 0) && (idx < backend->contextCount()))
response.setResult(backend->contextIds()[idx]);
else
response.setError(QScriptDebuggerResponse::InvalidContextIndex);
} break;
case QScriptDebuggerCommand::GetContextInfo: {
QScriptContext *ctx = backend->context(command.contextIndex());
if (ctx)
response.setResult(QScriptContextInfo(ctx));
else
response.setError(QScriptDebuggerResponse::InvalidContextIndex);
} break;
case QScriptDebuggerCommand::GetThisObject: {
QScriptContext *ctx = backend->context(command.contextIndex());
if (ctx)
response.setResult(ctx->thisObject());
else
response.setError(QScriptDebuggerResponse::InvalidContextIndex);
} break;
case QScriptDebuggerCommand::GetActivationObject: {
QScriptContext *ctx = backend->context(command.contextIndex());
if (ctx)
response.setResult(ctx->activationObject());
else
response.setError(QScriptDebuggerResponse::InvalidContextIndex);
} break;
case QScriptDebuggerCommand::GetScopeChain: {
QScriptContext *ctx = backend->context(command.contextIndex());
if (ctx) {
QScriptDebuggerValueList dest;
QScriptValueList src = ctx->scopeChain();
for (int i = 0; i < src.size(); ++i)
dest.append(src.at(i));
response.setResult(dest);
} else {
response.setError(QScriptDebuggerResponse::InvalidContextIndex);
}
} break;
case QScriptDebuggerCommand::ContextsCheckpoint: {
response.setResult(QVariant::fromValue(backend->contextsCheckpoint()));
} break;
case QScriptDebuggerCommand::GetPropertyExpressionValue: {
QScriptContext *ctx = backend->context(command.contextIndex());
int lineNumber = command.lineNumber();
QVariant attr = command.attribute(QScriptDebuggerCommand::UserAttribute);
QStringList path = attr.toStringList();
if (!ctx || path.isEmpty())
break;
QScriptContextInfo ctxInfo(ctx);
if (ctx->callee().isValid()
&& ((lineNumber < ctxInfo.functionStartLineNumber())
|| (lineNumber > ctxInfo.functionEndLineNumber()))) {
break;
}
QScriptValueList objects;
int pathIndex = 0;
if (path.at(0) == QLatin1String("this")) {
objects.append(ctx->thisObject());
++pathIndex;
} else {
objects << ctx->scopeChain();
}
for (int i = 0; i < objects.size(); ++i) {
QScriptValue val = objects.at(i);
for (int j = pathIndex; val.isValid() && (j < path.size()); ++j) {
val = val.property(path.at(j));
}
if (val.isValid()) {
bool hadException = (ctx->state() == QScriptContext::ExceptionState);
QString str = val.toString();
if (!hadException && backend->engine()->hasUncaughtException())
backend->engine()->clearExceptions();
response.setResult(str);
break;
}
}
} break;
case QScriptDebuggerCommand::GetCompletions: {
QScriptContext *ctx = backend->context(command.contextIndex());
QVariant attr = command.attribute(QScriptDebuggerCommand::UserAttribute);
QStringList path = attr.toStringList();
if (!ctx || path.isEmpty())
break;
QScriptValueList objects;
QString prefix = path.last();
QSet<QString> matches;
if (path.size() > 1) {
const QString &topLevelIdent = path.at(0);
QScriptValue obj;
if (topLevelIdent == QLatin1String("this")) {
obj = ctx->thisObject();
} else {
QScriptValueList scopeChain;
scopeChain = ctx->scopeChain();
for (int i = 0; i < scopeChain.size(); ++i) {
QScriptValue oo = scopeChain.at(i).property(topLevelIdent);
if (oo.isObject()) {
obj = oo;
break;
}
}
}
for (int i = 1; obj.isObject() && (i < path.size()-1); ++i)
obj = obj.property(path.at(i));
if (obj.isValid())
objects.append(obj);
} else {
objects << ctx->scopeChain();
QStringList keywords;
keywords.append(QString::fromLatin1("this"));
keywords.append(QString::fromLatin1("true"));
keywords.append(QString::fromLatin1("false"));
keywords.append(QString::fromLatin1("null"));
for (int i = 0; i < keywords.size(); ++i) {
const QString &kwd = keywords.at(i);
if (isPrefixOf(prefix, kwd))
matches.insert(kwd);
}
}
for (int i = 0; i < objects.size(); ++i) {
QScriptValue obj = objects.at(i);
while (obj.isObject()) {
QScriptValueIterator it(obj);
while (it.hasNext()) {
it.next();
QString propertyName = it.name();
if (isPrefixOf(prefix, propertyName))
matches.insert(propertyName);
}
obj = obj.prototype();
}
}
QStringList matchesList = matches.toList();
qStableSort(matchesList);
response.setResult(matchesList);
} break;
case QScriptDebuggerCommand::NewScriptObjectSnapshot: {
int id = backend->newScriptObjectSnapshot();
response.setResult(id);
} break;
case QScriptDebuggerCommand::ScriptObjectSnapshotCapture: {
int id = command.snapshotId();
QScriptObjectSnapshot *snap = backend->scriptObjectSnapshot(id);
Q_ASSERT(snap != 0);
QScriptDebuggerValue object = command.scriptValue();
Q_ASSERT(object.type() == QScriptDebuggerValue::ObjectValue);
QScriptEngine *engine = backend->engine();
QScriptValue realObject = object.toScriptValue(engine);
Q_ASSERT(realObject.isObject());
QScriptObjectSnapshot::Delta delta = snap->capture(realObject);
QScriptDebuggerObjectSnapshotDelta result;
result.removedProperties = delta.removedProperties;
bool didIgnoreExceptions = backend->ignoreExceptions();
backend->setIgnoreExceptions(true);
for (int i = 0; i < delta.changedProperties.size(); ++i) {
const QScriptValueProperty &src = delta.changedProperties.at(i);
bool hadException = engine->hasUncaughtException();
QString str = src.value().toString();
if (!hadException && engine->hasUncaughtException())
engine->clearExceptions();
QScriptDebuggerValueProperty dest(src.name(), src.value(), str, src.flags());
result.changedProperties.append(dest);
}
for (int j = 0; j < delta.addedProperties.size(); ++j) {
const QScriptValueProperty &src = delta.addedProperties.at(j);
bool hadException = engine->hasUncaughtException();
QString str = src.value().toString();
if (!hadException && engine->hasUncaughtException())
engine->clearExceptions();
QScriptDebuggerValueProperty dest(src.name(), src.value(), str, src.flags());
result.addedProperties.append(dest);
}
backend->setIgnoreExceptions(didIgnoreExceptions);
response.setResult(QVariant::fromValue(result));
} break;
case QScriptDebuggerCommand::DeleteScriptObjectSnapshot: {
int id = command.snapshotId();
backend->deleteScriptObjectSnapshot(id);
} break;
case QScriptDebuggerCommand::NewScriptValueIterator: {
QScriptDebuggerValue object = command.scriptValue();
Q_ASSERT(object.type() == QScriptDebuggerValue::ObjectValue);
QScriptEngine *engine = backend->engine();
QScriptValue realObject = object.toScriptValue(engine);
Q_ASSERT(realObject.isObject());
int id = backend->newScriptValueIterator(realObject);
response.setResult(id);
} break;
case QScriptDebuggerCommand::GetPropertiesByIterator: {
int id = command.iteratorId();
int count = 1000;
QScriptValueIterator *it = backend->scriptValueIterator(id);
Q_ASSERT(it != 0);
QScriptDebuggerValuePropertyList props;
for (int i = 0; (i < count) && it->hasNext(); ++i) {
it->next();
QString name = it->name();
QScriptValue value = it->value();
QString valueAsString = value.toString();
QScriptValue::PropertyFlags flags = it->flags();
QScriptDebuggerValueProperty prp(name, value, valueAsString, flags);
props.append(prp);
}
response.setResult(props);
} break;
case QScriptDebuggerCommand::DeleteScriptValueIterator: {
int id = command.iteratorId();
backend->deleteScriptValueIterator(id);
} break;
case QScriptDebuggerCommand::Evaluate: {
int contextIndex = command.contextIndex();
QString program = command.program();
QString fileName = command.fileName();
int lineNumber = command.lineNumber();
backend->evaluate(contextIndex, program, fileName, lineNumber);
response.setAsync(true);
} break;
case QScriptDebuggerCommand::ScriptValueToString: {
QScriptDebuggerValue value = command.scriptValue();
QScriptEngine *engine = backend->engine();
QScriptValue realValue = value.toScriptValue(engine);
response.setResult(realValue.toString());
} break;
case QScriptDebuggerCommand::SetScriptValueProperty: {
QScriptDebuggerValue object = command.scriptValue();
QScriptEngine *engine = backend->engine();
QScriptValue realObject = object.toScriptValue(engine);
QScriptDebuggerValue value = command.subordinateScriptValue();
QScriptValue realValue = value.toScriptValue(engine);
QString name = command.name();
realObject.setProperty(name, realValue);
} break;
case QScriptDebuggerCommand::ClearExceptions:
backend->engine()->clearExceptions();
break;
case QScriptDebuggerCommand::UserCommand:
case QScriptDebuggerCommand::MaxUserCommand:
break;
}
return response;
}
QScriptValue include( QScriptContext *context, QScriptEngine *engine )
{
// Check argument count, include() call in global context?
const QScriptContextInfo contextInfo( context->parentContext() );
if ( context->argumentCount() < 1 ) {
context->throwError( i18nc("@info/plain", "One argument expected for <icode>include()</icode>") );
return engine->undefinedValue();
} else if ( context->parentContext() && context->parentContext()->parentContext() ) {
QScriptContext *parentContext = context->parentContext()->parentContext();
bool error = false;
while ( parentContext ) {
const QScriptContextInfo parentContextInfo( parentContext );
if ( !parentContextInfo.fileName().isEmpty() &&
parentContextInfo.fileName() == contextInfo.fileName() )
{
// Parent context is in the same file, error
error = true;
break;
}
parentContext = parentContext->parentContext();
}
if ( error ) {
context->throwError( i18nc("@info/plain", "<icode>include()</icode> calls must be in global context") );
return engine->undefinedValue();
}
}
// Check if this include() call is before all other statements
QVariantHash includeData = context->callee().data().toVariant().toHash();
if ( includeData.contains(contextInfo.fileName()) ) {
const quint16 maxIncludeLine = includeData[ contextInfo.fileName() ].toInt();
if ( contextInfo.lineNumber() > maxIncludeLine ) {
context->throwError( i18nc("@info/plain", "<icode>include()</icode> calls must be the first statements") );
return engine->undefinedValue();
}
}
// Get argument and check that it's not pointing to another directory
const QString fileName = context->argument(0).toString();
if ( fileName.contains('/') ) {
context->throwError( i18nc("@info/plain", "Cannot include files from other directories") );
return engine->undefinedValue();
}
// Get path of the main script
QString path;
QScriptContext *fileInfoContext = context;
do {
path = QFileInfo( QScriptContextInfo(fileInfoContext).fileName() ).path();
fileInfoContext = fileInfoContext->parentContext();
} while ( path.isEmpty() || path == QLatin1String(".") );
// Construct file path to the file to be included and check if the file is already included
const QString filePath = path + '/' + fileName;
QStringList includedFiles =
engine->globalObject().property( "includedFiles" ).toVariant().toStringList();
if ( includedFiles.contains(filePath) ) {
kWarning() << "File already included" << filePath;
return engine->undefinedValue();
}
// Try to open the file to be included
QFile scriptFile( filePath );
if ( !scriptFile.open(QIODevice::ReadOnly) ) {
context->throwError( i18nc("@info/plain", "Cannot find file to be included: "
"<filename>%1</filename>", filePath) );
return engine->undefinedValue();
}
// Read the file
QTextStream stream( &scriptFile );
const QString program = stream.readAll();
scriptFile.close();
if ( !includeData.contains(scriptFile.fileName()) ) {
includeData[ scriptFile.fileName() ] = maxIncludeLine( program );
QScriptValue includeFunction = engine->globalObject().property("include");
Q_ASSERT( includeFunction.isValid() );
includeFunction.setData( qScriptValueFromValue(engine, includeData) );
engine->globalObject().setProperty( "include", includeFunction,
QScriptValue::KeepExistingFlags );
}
// Set script context
QScriptContext *parent = context->parentContext();
if ( parent ) {
context->setActivationObject( parent->activationObject() );
context->setThisObject( parent->thisObject() );
}
// Store included files in global property "includedFiles"
includedFiles << filePath;
includedFiles.removeDuplicates();
QScriptValue::PropertyFlags flags = QScriptValue::ReadOnly | QScriptValue::Undeletable;
engine->globalObject().setProperty( "includedFiles", engine->newVariant(includedFiles), flags );
// Evaluate script
return engine->evaluate( program, filePath );
}