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  1. Qt
  2. QTBUG-26574

v8 signal resolution is not dynamic

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    Description

      Following QTBUG-24891, I would expect that overriding a property should result in the on<Property>Changed signal for that property being emitted when the overriding property is changed. This is not the case either with optimized or unoptimized bindings, as demonstrated by:

      main.qml
      import QtQuick 2.0

MyItem {
    property int myprop: 10
    Component.onCompleted: myprop = 20
}
      Unable to find source-code formatter for language: myitem.qml. Available languages are: actionscript, ada, applescript, bash, c, c#, c++, cpp, css, erlang, go, groovy, haskell, html, java, javascript, js, json, lua, none, nyan, objc, perl, php, python, r, rainbow, ruby, scala, sh, sql, swift, visualbasic, xml, yaml
      import QtQuick 2.0

Item {
    property string myprop: "hello world"
    onMypropChanged: console.log('myprop: ' + myprop)
    //'normal' result:                <no output>
    //QML_DISABLE_OPTIMIZER=1 result: <no output>
}

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          Bug - A problem which impairs or prevents the functions of the product. QTBUG-24891 v4 and v8 resolve root object properties differently

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
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              mvogt Matthew Vogt (closed Nokia identity) (Inactive)
              mvogt Matthew Vogt (closed Nokia identity) (Inactive)
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                Updated:
                Resolved:

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