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  1. Qt
  2. QTBUG-108451

[6.2.4 -> 6.4.0] QML: QVariantList is not automatically converted to array

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    • Linux/Other display system, macOS

      Complete example was added to Attachments (qvariantlist_bug.zip)

      Consider following property declared in C++ code:

      QPROPERTY(QVariantList values READ values NOTIFY valuesChanged)

      This property is later used in QML: 

      property var values: provider.values.reverse()
      

      How I expected this code to work: provider.values is converted to JS array, reverse() method of JS array is called. It used to work like this until the update from Qt 6.2.4 to Qt 6.4.0 happened.

      In QML debugger I'm able to observe that QVariantList is now converted to an object with string properties instead of Array of strings.

       

        1. console_log_6_2_4.jpg
          console_log_6_2_4.jpg
          24 kB
        2. console_log_6_4_0.jpg
          console_log_6_4_0.jpg
          30 kB
        3. qvariantlist_bug.zip
          2 kB
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            ulherman Ulf Hermann
            hmi hmi ui
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              Created:
              Updated:
              Resolved:

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