void FunctionClassData::mark(const QScriptValueImpl &object, int generation)
{
if (object.classInfo() != classInfo())
return;
QScriptFunction *fun = object.toFunction();
QScriptEnginePrivate *eng = QScriptEnginePrivate::get(object.engine());
fun->mark(eng, generation);
}
QScriptValueImpl Function::method_toString(QScriptContextPrivate *context, QScriptEnginePrivate *eng, QScriptClassInfo *)
{
QScriptValueImpl self = context->thisObject();
if (QScriptFunction *foo = self.toFunction()) {
QString code = foo->toString(context);
return QScriptValueImpl(eng, code);
}
return context->throwError(QScriptContext::TypeError,
QLatin1String("Function.prototype.toString"));
}
bool FunctionClassData::get(const QScriptValueImpl &object, const Member &member,
QScriptValueImpl *result)
{
if (object.classInfo() != classInfo())
return false;
QScriptEnginePrivate *eng = QScriptEnginePrivate::get(object.engine());
if (! member.isNativeProperty())
return false;
if (member.nameId() == eng->idTable()->id_length) {
eng->newNumber(result, object.toFunction()->length);
return true;
} else if (member.nameId() == eng->idTable()->id_arguments) {
eng->newNull(result);
return true;
}
return false;
}
/*!
\internal
*/
QScriptContextInfoPrivate::QScriptContextInfoPrivate(const QScriptContext *context)
{
Q_ASSERT(context);
ref = 0;
functionType = QScriptContextInfo::NativeFunction;
functionMetaIndex = -1;
functionStartLineNumber = -1;
functionEndLineNumber = -1;
const QScriptContextPrivate *ctx_p = QScriptContextPrivate::get(context);
scriptId = ctx_p->scriptId();
fileName = ctx_p->fileName();
lineNumber = ctx_p->currentLine;
columnNumber = ctx_p->currentColumn;
QScriptValueImpl callee = QScriptValuePrivate::valueOf(context->callee());
QScriptFunction *fun = callee.toFunction();
if (fun) {
functionName = fun->functionName();
functionStartLineNumber = fun->startLineNumber();
functionEndLineNumber = fun->endLineNumber();
switch (fun->type()) {
case QScriptFunction::Unknown:
functionType = QScriptContextInfo::NativeFunction;
break;
case QScriptFunction::Script:
functionType = QScriptContextInfo::ScriptFunction;
for (int i = 0; i < fun->formals.count(); ++i)
parameterNames.append(fun->formals.at(i)->s);
break;
case QScriptFunction::C:
functionType = QScriptContextInfo::NativeFunction;
break;
case QScriptFunction::C2:
functionType = QScriptContextInfo::NativeFunction;
break;
case QScriptFunction::C3:
functionType = QScriptContextInfo::NativeFunction;
break;
case QScriptFunction::Qt: {
functionType = QScriptContextInfo::QtFunction;
functionMetaIndex = ctx_p->calleeMetaIndex;
#ifndef QT_NO_QOBJECT
const QMetaObject *meta;
meta = static_cast<QScript::QtFunction*>(fun)->metaObject();
if (meta) {
QMetaMethod method = meta->method(functionMetaIndex);
QList<QByteArray> formals = method.parameterNames();
for (int i = 0; i < formals.count(); ++i)
parameterNames.append(QLatin1String(formals.at(i)));
}
#endif
} break;
case QScriptFunction::QtProperty:
functionType = QScriptContextInfo::QtPropertyFunction;
functionMetaIndex = ctx_p->calleeMetaIndex;
break;
}
}
}
QScriptValueImpl Function::method_connect(QScriptContextPrivate *context, QScriptEnginePrivate *eng, QScriptClassInfo *classInfo)
{
Q_UNUSED(classInfo);
#ifndef QT_NO_QOBJECT
if (context->argumentCount() == 0) {
return context->throwError(
QLatin1String("Function.prototype.connect: no arguments given"));
}
QScriptValueImpl self = context->thisObject();
QScriptFunction *fun = self.toFunction();
if ((fun == 0) || (fun->type() != QScriptFunction::Qt)) {
return context->throwError(
QScriptContext::TypeError,
QLatin1String("Function.prototype.connect: this object is not a signal"));
}
QtFunction *qtSignal = static_cast<QtFunction*>(fun);
const QMetaObject *meta = qtSignal->metaObject();
if (!meta) {
return context->throwError(
QScriptContext::TypeError,
QString::fromLatin1("Function.prototype.connect: cannot connect to deleted QObject"));
}
QMetaMethod sig = meta->method(qtSignal->initialIndex());
if (sig.methodType() != QMetaMethod::Signal) {
return context->throwError(QScriptContext::TypeError,
QString::fromLatin1("Function.prototype.connect: %0::%1 is not a signal")
.arg(QLatin1String(qtSignal->metaObject()->className()))
.arg(QLatin1String(sig.signature())));
}
QScriptValueImpl receiver;
QScriptValueImpl slot;
QScriptValueImpl arg0 = context->argument(0);
if (context->argumentCount() < 2) {
receiver = QScriptValueImpl();
slot = arg0;
} else {
receiver = arg0;
QScriptValueImpl arg1 = context->argument(1);
if (arg1.isFunction())
slot = arg1;
else
slot = receiver.property(arg1.toString(), QScriptValue::ResolvePrototype);
}
if (!slot.isFunction()) {
return context->throwError(
QScriptContext::TypeError,
QLatin1String("Function.prototype.connect: target is not a function"));
}
bool ok = eng->scriptConnect(self, receiver, slot);
if (!ok) {
return context->throwError(
QString::fromLatin1("Function.prototype.connect: failed to connect to %0::%1")
.arg(QLatin1String(qtSignal->metaObject()->className()))
.arg(QLatin1String(sig.signature())));
}
return eng->undefinedValue();
#else
Q_UNUSED(eng);
Q_UNUSED(classInfo);
return context->throwError(QScriptContext::TypeError,
QLatin1String("Function.prototype.connect"));
#endif // QT_NO_QOBJECT
}
