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  1. Qt
  2. QTBUG-64093

lupdate broken with forward declared template class

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    • Icon: Bug Bug
    • Resolution: Duplicate
    • Icon: P3: Somewhat important P3: Somewhat important
    • None
    • 5.9.2
    • Tools: Linguist
    • None

      When using this kind of header lupdate complain that it can not guess correctly the fully qualified class namespace for the translations:

      // Header
namespace MyApp {
template <typename Model>
class ModelHelper;
typedef ModelHelper<class BaseProxyModel> ProxyModel;

class XYZ : public QObject 
{
    Q_OBJECT

public:
  explicit XYZ(QObject *parent = nullptr);
};
} // My App

// Source
using namespace MyApp;

XYZ::XYZ(QObject *parent)
  : QObject(parent)
{
  tr("Hello");
}

      changing to this one fix the issue:

      // Header
namespace MyApp {
template <typename Model>
class ModelHelper;
class BaseProxyModel;
typedef ModelHelper<BaseProxyModel> ProxyModel;

class XYZ : public QObject 
{
    Q_OBJECT

public:
  explicit XYZ(QObject *parent = nullptr);
};
} // My App

// Source
using namespace MyApp;

XYZ::XYZ(QObject *parent)
  : QObject(parent)
{
  tr("Hello");
}

      So the guilty line is typedef ModelHelper<class BaseProxyModel> ProxyModel;

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            buddenha Oswald Buddenhagen
            filipe.azevedo Filipe Azevedo
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              Created:
              Updated:
              Resolved:

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