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Posted to issues@royale.apache.org by gi...@git.apache.org on 2017/10/15 23:04:40 UTC
[GitHub] justinmclean opened a new issue #34: Compiler throws null pointer RTE on implicit coercion of object to string
justinmclean opened a new issue #34: Compiler throws null pointer RTE on implicit coercion of object to string
URL: https://github.com/apache/royale-asjs/issues/34
This code:
<?xml version="1.0" encoding="utf-8"?>
<js:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:js="library://ns.apache.org/flexjs/basic">
<fx:Script><![CDATA[
public function showSelected():void {
selected.text = radio.selectedValue;
}
]]></fx:Script>
<js:valuesImpl>
<js:SimpleCSSValuesImpl/>
</js:valuesImpl>
<js:initialView>
<js:View>
<js:Group id="content">
<js:beads>
<js:VerticalLayout />
</js:beads>
<js:RadioButton id="radio" text="one" value="1" groupName="group" click="showSelected()"/>
<js:RadioButton text="two" value="2" groupName="group" click="showSelected()"/>
<js:RadioButton text="three" value="3" groupName="group" click="showSelected()"/>
<js:Label id="selected" />
</js:Group>
</js:View>
</js:initialView>
</js:Application>
Produces this compiler null pointer exception:
```
/Users/justinmclean/IdeaProjects/FlexJSTest/src/RadioButtonTest.mxml(7): col: 9 Internal error: java.lang.NullPointerException
at org.apache.flex.compiler.internal.projects.FlexProject.isValidTypeConversion(FlexProject.java:2304)
at org.apache.flex.compiler.internal.semantics.MethodBodySemanticChecker.checkImplicitConversion(MethodBodySemanticChecker.java:564)
at org.apache.flex.compiler.internal.semantics.MethodBodySemanticChecker.checkImplicitConversion(MethodBodySemanticChecker.java:374)
at org.apache.flex.compiler.internal.semantics.MethodBodySemanticChecker.checkAssignment(MethodBodySemanticChecker.java:246)
at org.apache.flex.compiler.internal.as.codegen.ABCGeneratingReducer.reduce_assignToMemberExpr_to_void_expression(ABCGeneratingReducer.java:2904)
at org.apache.flex.compiler.internal.as.codegen.CmcEmitter.action_235(CmcEmitter.java:4432)
at org.apache.flex.compiler.internal.as.codegen.CmcEmitter.dispatchAction(CmcEmitter.java:8057)
at org.apache.flex.compiler.internal.as.codegen.CmcEmitter.reduceAntecedent(CmcEmitter.java:39127)
at org.apache.flex.compiler.internal.as.codegen.CmcEmitter.dispatchAction(CmcEmitter.java:9398)
at org.apache.flex.compiler.internal.as.codegen.CmcEmitter.reduceAntecedent(CmcEmitter.java:39127)
at org.apache.flex.compiler.internal.as.codegen.CmcEmitter.reduce(CmcEmitter.java:39104)
at org.apache.flex.compiler.internal.as.codegen.CmcEmitter.reduceSubgoals(CmcEmitter.java:39155)
at org.apache.flex.compiler.internal.as.codegen.CmcEmitter.reduceAntecedent(CmcEmitter.java:39126)
at org.apache.flex.compiler.internal.as.codegen.CmcEmitter.reduce(CmcEmitter.java:39104)
at org.apache.flex.compiler.internal.as.codegen.CmcEmitter.reduceSubgoals(CmcEmitter.java:39146)
at org.apache.flex.compiler.internal.as.codegen.CmcEmitter.reduceAntecedent(CmcEmitter.java:39126)
at org.apache.flex.compiler.internal.as.codegen.CmcEmitter.reduce(CmcEmitter.java:39104)
at org.apache.flex.compiler.internal.as.codegen.CmcEmitter.burm(CmcEmitter.java:39406)
at org.apache.flex.compiler.internal.as.codegen.ABCGenerator.generateInstructions(ABCGenerator.java:228)
at org.apache.flex.compiler.internal.as.codegen.ABCGenerator.generateMethodBodyForFunction(ABCGenerator.java:393)
at org.apache.flex.compiler.internal.as.codegen.ABCGenerator.generateMethodBodyForFunction(ABCGenerator.java:347)
at org.apache.flex.compiler.internal.as.codegen.ABCGenerator.generateFunction(ABCGenerator.java:262)
at org.apache.flex.compiler.internal.as.codegen.ClassDirectiveProcessor.declareFunction(ClassDirectiveProcessor.java:886)
at org.apache.flex.compiler.internal.as.codegen.DirectiveProcessor.processNode(DirectiveProcessor.java:214)
at org.apache.flex.compiler.internal.as.codegen.MXMLClassDirectiveProcessor.processNode(MXMLClassDirectiveProcessor.java:1116)
at org.apache.flex.compiler.internal.as.codegen.MXMLClassDirectiveProcessor.traverse(MXMLClassDirectiveProcessor.java:861)
at org.apache.flex.compiler.internal.as.codegen.MXMLClassDirectiveProcessor.traverse(MXMLClassDirectiveProcessor.java:831)
at org.apache.flex.compiler.internal.as.codegen.MXMLClassDirectiveProcessor.processMXMLScript(MXMLClassDirectiveProcessor.java:4153)
at org.apache.flex.compiler.internal.as.codegen.MXMLClassDirectiveProcessor.processNode(MXMLClassDirectiveProcessor.java:982)
at org.apache.flex.compiler.internal.as.codegen.MXMLClassDirectiveProcessor.traverse(MXMLClassDirectiveProcessor.java:861)
at org.apache.flex.compiler.internal.as.codegen.MXMLClassDirectiveProcessor.traverse(MXMLClassDirectiveProcessor.java:831)
at org.apache.flex.compiler.internal.as.codegen.MXMLClassDirectiveProcessor.processMainClassDefinitionNode(MXMLClassDirectiveProcessor.java:653)
at org.apache.flex.compiler.internal.as.codegen.GlobalDirectiveProcessor.declareMXMLDocument(GlobalDirectiveProcessor.java:518)
at org.apache.flex.compiler.internal.as.codegen.DirectiveProcessor.processNode(DirectiveProcessor.java:232)
at org.apache.flex.compiler.internal.as.codegen.DirectiveProcessor.traverse(DirectiveProcessor.java:188)
at org.apache.flex.compiler.internal.as.codegen.ABCGenerator.generate(ABCGenerator.java:122)
at `org.apache.flex.compiler.internal.units.MXMLCompilationUnit.handleABCBytesRequest(MXMLCompilationUnit.java:199)`
at org.apache.flex.compiler.internal.units.CompilationUnitBase.processABCBytesRequest(CompilationUnitBase.java:876)
at org.apache.flex.compiler.internal.units.CompilationUnitBase.access$300(CompilationUnitBase.java:109)
at org.apache.flex.compiler.internal.units.CompilationUnitBase$4$1.call(CompilationUnitBase.java:313)
at org.apache.flex.compiler.internal.units.CompilationUnitBase$4$1.call(CompilationUnitBase.java:309)
at org.apache.flex.compiler.internal.units.requests.RequestMaker$1.call(RequestMaker.java:228)
at org.apache.flex.compiler.internal.units.requests.RequestMaker$1.call(RequestMaker.java:222)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
public function showSelected():void {
^
```
Note the error is also pointing to the wrong line i.e. the function rather than the assignment that is the cause of the error in the function.
` selected.text = radio.selectedValue;`
A similar line in the FlexSDK would produce this error:
Implicit coercion of a value with static type Object to a possibly unrelated type String.
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