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  1. Qt
  2. QTBUG-121464

signal handler argument is erroneously undefined

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    • Linux/Wayland

      I have observed this odd behaviour and I'm unsure if that is bug or if I'm doing something wrong:

       

      this code prints "undefined" (which is certainly not the case)

      signal save(MyValue value)

// forwarding a signal with parameter
onInnerSave: (value) => { 
  console.log(value)          // prints "undefined"
  root.save(value)            // calls signal which fails due to undefined
}

      whereas this workaround  works

      signal save(MyValue value)

function saveWrapped(value) { 
  console.log(value)          // prints the correct object 
  root.save(value)            // calls signal, works just fine
} 

onInnerSave: (value) => { 
  saveWrapped(value) 
}

       

      Child component signal:

      signal innerSave(MyValue value)

       

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            qtqmlteam Qt Qml Team User
            eetfuk1988 Alexander Stöcker
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              Created:
              Updated:
              Resolved:

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