无法将单例作为对象的属性进行访问

qmllint 将此警告类别拼写为“[access-singleton-via-object] ”。

通过对象访问单例

发生了什么？

您使用了从命名空间访问附加属性的语法来访问单例。

为什么这样不好？

无法通过这种方式访问单例。该表达式将求值为 undefined。

示例

import QtQml
import QtQuick as QQ

QtObject {
    id: root
    // Cannot access singleton as a property of an object. Did you want to access an attached object?
    property var singletonAccess: root.QQ.Application.platform
}

要解决此警告，如果您打算使用该单例，请移除命名空间前面的id 或property。或者，如果您想访问附着属性，请检查是否有拼写错误。

import QtQml
import QtQuick as QQ

QtObject {
    id: root
    property var singletonAccess: QQ.Application.platform
    property bool attachedPropertyAccess: root.QQ.ListView.isCurrentItem
}

QML Lint 警告与错误别名循环

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