yishayw commented on issue #126: Bad implicit casting to Function
URL: https://github.com/apache/royale-compiler/issues/126#issuecomment-602536963
 
 
   I haven't been able to come up with an isolated test case either. I don't 
know enough about the conditions for implicit casting to be efficient at this. 
FWIW, here's some more context from the original code
   
   `        private function createListData(fdgc:IFooterDataGridColumn, 
i:Number):void
           {
               if (fdgc.renderer is IDropInListItemRenderer)
               {
   //                var text:String = (fdgc.labelFunction != null) ? 
fdgc.labelFunction(fdgc.dataColumn) : fdgc.label;
                                var text:String = "";
                                if (fdgc.labelFunction != null)
                                {
                        text = fdgc.labelFunction(fdgc.dataColumn).toString();
                       // var labelFunction:Function = fdgc.labelFunction;
                                }`
   
   IFooterDataGridColumn.as has these lines:
   
   `        function set labelFunction(value:Function):void
           function get labelFunction():Function
           function set dataColumn(value:Object):void
           function get dataColumn():Object
   `
   
   and dataColumn is populated like this:
   
   `                                                   <ns4:SummaryColumn 
operation='count' dataColumn='{LastName}'/>`
   
   where LastName is
   
   `                                                    
<mx:AdvancedDataGridColumn headerText="Last Name" dataField="LastName" 
width="140" textAlign="left" id="LastName"/>`
   
   

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