Simple Qt based JSON file loading

load_json_qt.cpp

QVariant loadJson(const QString &path)
{
	QFile file(path);

	if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
		throw Exception(QStringLiteral("Could not open file"));
	}

	QByteArray input = file.readAll();
	file.close();

	QJsonParseError error = {};
	QJsonDocument document = QJsonDocument::fromJson(input, &error);

	if (error.error != QJsonParseError::NoError) {
		throw Exception(error.errorString());
	}

	return document.toVariant();
}