[jira] [Created] (FLEX-35081) Null Pointer Exception in attempt of overriding data property in item renderer

[Piotr Zarzycki (JIRA)]

Piotr Zarzycki created FLEX-35081:
-------------------------------------

             Summary: Null Pointer Exception in attempt of overriding data 
property in item renderer
                 Key: FLEX-35081
                 URL: https://issues.apache.org/jira/browse/FLEX-35081
             Project: Apache Flex
          Issue Type: Bug
          Components: FlexJS
    Affects Versions: Apache FlexJS 0.7.0
         Environment: Windows 7
Firefox
            Reporter: Piotr Zarzycki
            Priority: Minor


Example TodoListSampleApp - FlexJS repository.
I have created org.apache.flex.html.supportClasses.DataItemRender in mxml. In 
attempt of compiling following code I got NPE.

{code:title=Compiled Code}
<basic:DataItemRenderer xmlns:fx="http://ns.adobe.com/mxml/2009";
                        xmlns:basic="library://ns.apache.org/flexjs/basic">
    <basic:beads>
        <basic:HorizontalLayout />
    </basic:beads>
    <basic:CheckBox text="{data.selected}"/>
    <basic:Label text="{data.text}"/>
    <basic:TextButton width="50" text="Remove"/>
    <fx:Script>
        <![CDATA[
        override public function set data(value:Object):void {
            super.data = value;
        }
        ]]>
        </fx:Script>
</basic:DataItemRenderer>
{code}

{code:title=Null Pointer Exception}
Error:[TodoListSampleApp - TodoListSampleApp]: : java.lang.NullPointerException 
        at 
org.apache.flex.compiler.internal.codegen.js.jx.BinaryOperatorEmitter.emit(BinaryOperatorEmitter.java:118)
   at 
org.apache.flex.compiler.internal.codegen.js.flexjs.JSFlexJSEmitter.emitBinaryOperator(JSFlexJSEmitter.java:675)
     at 
org.apache.flex.compiler.internal.codegen.as.ASBlockWalker.visitBinaryOperator(ASBlockWalker.java:525)
       at 
org.apache.flex.compiler.internal.visitor.as.ASNodeSwitch.handle(ASNodeSwitch.java:349)
      at 
org.apache.flex.compiler.internal.visitor.as.ASNodeHandler.handle(ASNodeHandler.java:85)
     at 
org.apache.flex.compiler.internal.visitor.as.BeforeAfterStrategy.handle(BeforeAfterStrategy.java:110)
        at 
org.apache.flex.compiler.internal.codegen.as.ASBlockWalker.walk(ASBlockWalker.java:157)
      at 
org.apache.flex.compiler.internal.codegen.js.jx.StatementEmitter.emit(StatementEmitter.java:22)
      at 
org.apache.flex.compiler.internal.codegen.js.JSEmitter.emitStatement(JSEmitter.java:281)
     at 
org.apache.flex.compiler.internal.codegen.js.flexjs.JSFlexJSEmitter.emitStatement(JSFlexJSEmitter.java:762)
          at 
org.apache.flex.compiler.internal.codegen.as.ASBlockWalker.visitBlock(ASBlockWalker.java:335)
        at 
org.apache.flex.compiler.internal.visitor.as.ASNodeSwitch.handle(ASNodeSwitch.java:279)
      at 
org.apache.flex.compiler.internal.visitor.as.ASNodeHandler.handle(ASNodeHandler.java:85)
     at 
org.apache.flex.compiler.internal.visitor.as.BeforeAfterStrategy.handle(BeforeAfterStrategy.java:110)
        at 
org.apache.flex.compiler.internal.codegen.as.ASBlockWalker.walk(ASBlockWalker.java:157)
      at 
org.apache.flex.compiler.internal.codegen.as.ASEmitter.emitMethodScope(ASEmitter.java:843)
   at 
org.apache.flex.compiler.internal.codegen.js.jx.DefinePropertyFunctionEmitter.emit(DefinePropertyFunctionEmitter.java:117)
   at 
org.apache.flex.compiler.internal.codegen.js.flexjs.JSFlexJSEmitter.emitDefinePropertyFunction(JSFlexJSEmitter.java:714)
     at 
org.apache.flex.compiler.internal.codegen.js.jx.AccessorEmitter.emit(AccessorEmitter.java:212)
       at 
org.apache.flex.compiler.internal.codegen.mxml.flexjs.MXMLFlexJSEmitter.emitDocument(MXMLFlexJSEmitter.java:341)
     at 
org.apache.flex.compiler.internal.codegen.mxml.flexjs.MXMLFlexJSBlockWalker.visitDocument(MXMLFlexJSBlockWalker.java:69)
     at 
org.apache.flex.compiler.internal.visitor.mxml.MXMLNodeSwitch.handle(MXMLNodeSwitch.java:84)
         at 
org.apache.flex.compiler.internal.codegen.mxml.MXMLBlockWalker.walk(MXMLBlockWalker.java:149)
        at 
org.apache.flex.compiler.internal.codegen.mxml.flexjs.MXMLFlexJSBlockWalker.visitFile(MXMLFlexJSBlockWalker.java:61)
         at 
org.apache.flex.compiler.internal.visitor.mxml.MXMLNodeSwitch.handle(MXMLNodeSwitch.java:90)
         at 
org.apache.flex.compiler.internal.codegen.mxml.MXMLBlockWalker.walk(MXMLBlockWalker.java:149)
        at 
org.apache.flex.compiler.internal.codegen.mxml.MXMLBlockWalker.visitCompilationUnit(MXMLBlockWalker.java:168)
        at 
org.apache.flex.compiler.internal.codegen.mxml.MXMLWriter.writeTo(MXMLWriter.java:67)
        at org.apache.flex.compiler.clients.MXMLJSC.compile(MXMLJSC.java:480)   
at org.apache.flex.compiler.clients.MXMLJSC._mainNoExit(MXMLJSC.java:352)       
at org.apache.flex.compiler.clients.MXMLJSC.mainNoExit(MXMLJSC.java:277)        
at flex2.tools.MxmlJSC.execute(MxmlJSC.java:93)         at 
flex2.tools.Tool.compile(Tool.java:81)       at 
flex2.tools.Mxmlc.mxmlc(Mxmlc.java:75)       at 
com.intellij.flex.compiler.flex4.Flex4Handler.compileSwf(Flex4Handler.java:81)  
     at 
com.intellij.flex.compiler.CompilationThread.run(CompilationThread.java:48)
{code}



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