Resolving property and function “overrides” in QML

Question

It seems like although QML supports \"overriding\" of properties and functions, the support is somewhat clunky. Here is an example snippet:

// T1.qml
QtObjec         


        

Answer 1

Found one simple and naive manual solution:

// T1.qml
QtObject {
    function f() { return f_t1() }
    function f_t1() { return 1 }
}

// T2.qml
T1 {
    function f() { return f_t2() }
    function f_t2() { return f_t1() + " blah " }
}

// usage
T2 {
    function f() { return f_t2() + 1.5}
    Component.onCompleted: console.log(f()) // outputs 1 blah 1.5
}

In short, have explicitly named function for every level of the "inheritance" that overrides, and use the non-decorated function override for polymorphic access, thus now the "base" type implementations can be reused by the derived.