Programmatically determine whether a cell was calculated or an input

This is a topic that seems to have history back to 2011 (ben g posted August 29, 2011 asking about it under \”Addressing cells programmatically\”), which asked if an \”isCalculated\” property for cells is desirable.  Digging through the scripting, I can\’t find anything akin to a isCalculated property.  Is this doable now?

The use case here is grabbing all inputs for (a) error checking and (b) rolling into different versions of a model.  Don\’t want to grab every value, just every user input-able item.

I\’ve found a work around using try-catch blocks, but a more elegant solution would be preferred.  The workaround basically \”saves\” the current value of a target cell then tries to write a different value to the item.  If it\’s calculated, it will throw an error, which will be caught if wrapped in a try-catch block.  If it\’s an input, no error, and then I write the original value back.

tgt = |Matrix3::Product4:New Time|
try{
    temp = tgt.value
    tgt.value = temp.toString() + \"a\"
    print(\"isInput\")
    tgt.value = temp
}
catch (Exception e) {
    print(\"isCalculated\")
}

Thanks!