import QtQuick
import Qt.labs.synchronizer

Window {
    id: window
    width: 640
    height: 480
    visible: true

    property int refValue: 0

    component TestObject: QtObject {
        required property int value
    }

    TestObject {
        value: 0 // OK: Required property is set.
    }

    TestObject {
        // "Missing required property" warning is expected here,
        // because this produces a runtime error.
    }

    TestObject {
        // "Missing required property" warning is NOT expected here,
        // because this does NOT produce a runtime error.
        Synchronizer on value {
            property alias source: window.refValue
        }
    }
}