referenceToSingletonReadsBackOnlyWhenRequired.qml

Enable keyboard shortcuts

import qqmllanguage.Test

import QtQml

import "singleton"

QtObject {

    property variant singletonInstance: ReadCounterSingleton

    property int finalQualityLevel: ValueTypeWithEnum1.LowQuality

    function randomBetween(min, max) {

        const minceil = Math.ceil(min);

        const maxfloor = Math.floor(max);

        return Math.floor(Math.random() * (maxfloor - minceil) + minceil);

    Component.onCompleted: {

        // 2 accesses

        ReadCounterSingleton.valueType.quality = ValueTypeWithEnum1.LowQuality;

        let counter = "e"

        let prop = "valueTyp" + counter

        // 0 accesses. The data will be obtained at the first occasion.

        let singletonReference = ReadCounterSingleton[prop];

        let accesses = randomBetween(4, 100);

        while (accesses > 0) {

            // 2 accesses on the first read. No accesses after as

            // there is no change.

            singletonReference.quality;

            --accesses;

        // 2 accesses

        ReadCounterSingleton.valueType.quality = ValueTypeWithEnum1.VeryHighQuality;

        // 2 accesses

        finalQualityLevel = singletonReference.quality;