+////////////////////////////////////////////////////////////////////////
+
+QQmlBoundSignalNoParams::QQmlBoundSignalNoParams(QObject *scope, const QMetaMethod &signal,
+ QObject *owner)
+: m_expression(0), m_owner(owner), m_index(signal.methodIndex()), m_isEvaluating(false)
+{
+ callback = &subscriptionCallback;
+ QQmlNotifierEndpoint::connect(scope, m_index);
+}
+
+QQmlBoundSignalNoParams::~QQmlBoundSignalNoParams()
+{
+ delete m_expression;
+ m_expression = 0;
+}
+
+int QQmlBoundSignalNoParams::index() const
+{
+ return m_index;
+}
+
+/*!
+ Returns the signal expression.
+*/
+QQmlExpression *QQmlBoundSignalNoParams::expression() const
+{
+ return m_expression;
+}
+
+/*!
+ Sets the signal expression to \a e. Returns the current signal expression,
+ or null if there is no signal expression.
+
+ The QQmlBoundSignalNoParams instance takes ownership of \a e. The caller is
+ assumes ownership of the returned QQmlExpression.
+*/
+QQmlExpression *QQmlBoundSignalNoParams::setExpression(QQmlExpression *e)
+{
+ QQmlExpression *rv = m_expression;
+ m_expression = e;
+ if (m_expression) m_expression->setNotifyOnValueChanged(false);
+ return rv;
+}
+
+void QQmlBoundSignalNoParams::subscriptionCallback(QQmlNotifierEndpoint *e)
+{
+ QQmlBoundSignalNoParams *s = static_cast<QQmlBoundSignalNoParams*>(e);
+ if (!s->m_expression)
+ return;
+
+ if (QQmlDebugService::isDebuggingEnabled())
+ QV8DebugService::instance()->signalEmitted(QString::fromAscii(s->m_owner->metaObject()->method(s->m_index).signature()));
+
+ QQmlHandlingSignalProfiler prof(s->m_owner, s->m_index, s->m_expression);
+
+ s->m_isEvaluating = true;
+
+ if (s->m_expression && s->m_expression->engine()) {
+ QQmlExpressionPrivate::get(s->m_expression)->value();
+ if (s->m_expression && s->m_expression->hasError())
+ QQmlEnginePrivate::warning(s->m_expression->engine(), s->m_expression->error());
+ }
+ s->m_isEvaluating = false;
+}
+