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Details

Type: Bug
Resolution: Done
Priority: P2: Important
Fix Version/s: 6.4.2, 6.5.0 Beta1, 6.5
Affects Version/s: 6.4.0
Component/s: QML: Compiler
Labels:
- qmlnext
- reported_by_support_standard

Commits:
91c6d45559 (qt/qtdeclarative/dev) 91c6d45559 (qt/tqtc-qtdeclarative/dev)

Description

Qt 6.4.0 added support for property list<T> (see https://doc.qt.io/qt-6/qml-list.html#using-the-list-type ) but the corresponding type annotations are not supported.

Code

import QtQuick

Window {
    width: 640
    height: 480
    visible: true

    property list<int> intList: [1, 2, 3, 4]

    function printList(arr: list<int>) {
        console.log(`Array of ${arr.length} items: [${arr}]`)
    }

    Component.onCompleted: printList(intList)
}

Compile Output

Error: main.qml:10:5: Could not compile function printList: Cannot resolve the argument type list.
    function printList(arr: list<int>) {
    ^^^^^^^^^
Error: main.qml:14:28: Could not compile binding for onCompleted: type list for argument 0 cannot be resolved
    Component.onCompleted: printList(intList)
                           ^^^^^^^^^