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Diffstat (limited to 'src/webchannel/qmetaobjectpublisher.cpp')
-rw-r--r--src/webchannel/qmetaobjectpublisher.cpp12
1 files changed, 9 insertions, 3 deletions
diff --git a/src/webchannel/qmetaobjectpublisher.cpp b/src/webchannel/qmetaobjectpublisher.cpp
index cfc6ad2..8e83237 100644
--- a/src/webchannel/qmetaobjectpublisher.cpp
+++ b/src/webchannel/qmetaobjectpublisher.cpp
@@ -664,9 +664,15 @@ void QMetaObjectPublisher::handleMessage(const QJsonObject &message, QWebChannel
return;
}
- transport->sendMessage(createResponse(message.value(KEY_ID),
- wrapResult(invokeMethod(object, message.value(KEY_METHOD).toInt(-1),
- message.value(KEY_ARGS).toArray()), transport)));
+ QPointer<QMetaObjectPublisher> publisherExists(this);
+ QPointer<QWebChannelAbstractTransport> transportExists(transport);
+ QVariant result =
+ invokeMethod(object,
+ message.value(KEY_METHOD).toInt(-1),
+ message.value(KEY_ARGS).toArray());
+ if (!publisherExists || !transportExists)
+ return;
+ transport->sendMessage(createResponse(message.value(KEY_ID), wrapResult(result, transport)));
} else if (type == TypeConnectToSignal) {
signalHandler.connectTo(object, message.value(KEY_SIGNAL).toInt(-1));
} else if (type == TypeDisconnectFromSignal) {