[AA] Active Annotatin Not Applicable to Interfaces

[denis....@gmail.com]

Hi,
is my assumtpion right, that an Active Annotation is not applicable to Xtend interface types?
I tried, but got an Xtend compilation error:

Error
Mon May 11 23:30:51 CEST 2015
org.eclipse.xtext.builder.BuilderParticipant  - Error during compilation of 'platform:/resource/FlowDesignInXtend/src/de/grammarcraft/xtend/annotatedflow/IFlowUnitInterface.xtend'.

java.lang.ClassCastException: org.eclipse.xtend.core.macro.declaration.XtendInterfaceDeclarationImpl cannot be cast to org.eclipse.xtend.lib.macro.declaration.ClassDeclaration
    at org.eclipse.xtend.lib.macro.AbstractClassProcessor.doGenerateCode(AbstractClassProcessor.java:53)
    at org.eclipse.xtend.core.compiler.XtendGenerator.callMacroProcessors(XtendGenerator.java:134)
    at org.eclipse.xtend.core.compiler.XtendGenerator.doGenerate(XtendGenerator.java:95)
    at org.eclipse.xtend.ide.builder.XtendParallelBuilderParticipant.handleChangedContents(XtendParallelBuilderParticipant.java:70)
    at org.eclipse.xtext.builder.BuilderParticipant.doGenerate(BuilderParticipant.java:501)
    at org.eclipse.xtend.ide.builder.XtendParallelBuilderParticipant.access$3(XtendParallelBuilderParticipant.java:1)
    at org.eclipse.xtend.ide.builder.XtendParallelBuilderParticipant$1.run(XtendParallelBuilderParticipant.java:114)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

Denis

[Christian Dietrich]

i think that it what 

AbstractInterfaceProcessor is for

[Sven Efftinge]

If you want a processor that works for all type declaration, you need to implement the various participant interfaces parameterized with TypeDeclaration.

On 12 May 2015, at 05:56, Christian Dietrich <christian.di...@googlemail.com> wrote:

i think that it what 

AbstractInterfaceProcessor is for

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[denis....@gmail.com]

Thanks both for the hints.

Sven, do you mean, to implement an AA applicable to interfaces and classes at the same time I would have to implement a class similar to the following signature:
public abstract class MyInterfaceAndClassProcessor implements RegisterGlobalsParticipant<TypeDeclaration>, TransformationParticipant<MutableTypeDeclaration>, CodeGenerationParticipant<TypeDeclaration>, ValidationParticipant<TypeDeclaration> { ... }

Does something like MutableTypeDeclaration exist?

Thanks, Denis

[Sebastian Zarnekow]

Yes, it's org.eclipse.xtend.lib.macro.declaration.MutableTypeDeclaration

The declaration of your InterfaceAndClassProcessor looks correct.

Best,

Sebastian