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  1. Qt
  2. QTBUG-141121

QML – Inconsistent behavior when annotating functions

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    • Linux/Wayland

      I noticed some weird behaviour when annotating functions inside an Item and inside a another function. I wasn't find any reference in the wiki mentioning this behaviour. When annotating a parameter without also annotating the return type following error is logged:

      Error: $FILENAME $VALUE should be coerced to void because the function called is insufficiently annotated. The original value is retained. This will change in a future version of Qt.

      However if a function declaration inside a function annotates a function parameter annotating the return type does not resolve this issue. Below is an example that illustrates the behaviour:

      Item
{
    function test0(layerIndex) // fine
    { return 0; }

    function test1(layerIndex : int) // not fine
    { return 0; }

    function test2(layerIndex) : int // fine
    { return 0; }

    function test3(layerIndex : int) : int // fine
    { return 0; }

    Component.onCompleted: {

        function test4(layerIndex) // fine
        { return 0; }

        function test5(layerIndex) : int // fine
        { return 0; }

        function test6(layerIndex : int) // not fine
        { return 0; }

        function test7(layerIndex : int) : int // not fine
        { return 0; }

        var x = 0;
        x = test0();
        x = test1(); // fail
        x = test2();
        x = test3();
        x = test4();
        x = test5();
        x = test6(); // fail
        x = test7(); // fail
    }
}

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            qtqmlteam Qt Qml Team User
            jsentity Timur Vaydogan
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              Created:
              Updated:

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