[Truffle] Support for long[]/double[] in TypeSystem

[Stefan Marr]

Hi:

I wanted to briefly see whether primitive arrays will give a significant speedup to see what the potential for collection strategies is. However, I ran into an issue with the TruffleDSL, specifically, the processing of @TypeSystem.

Looks like primitive arrays are currently not supported.
At least I get the error/stack trace below (both on TruffleSOM as well as SimpleLanguage).

ElementUtils.fromTypeMirror does seem to return null, instead of a TypeElement.

Would it be possible to add support for primitive arrays?

Hints how I could do that myself, and how I could debug an annotation processor would also be very much appreciate.

Thanks
Stefan

Uncaught error in AnnotationProcessor while processing som.interpreter.Types: null java.lang.NullPointerException at 
 com.oracle.truffle.dsl.processor.java.ElementUtils.getSuperType(ElementUtils.java:619) at com.oracle.truffle.dsl.processor.java.ElementUtils.getSuperTypes(ElementUtils.java:629) at 
 com.oracle.truffle.dsl.processor.java.ElementUtils.getQualifiedSuperTypeNames(ElementUtils.java:521) at 
 com.oracle.truffle.dsl.processor.parser.TypeSystemParser.verifyTypeOrder(TypeSystemParser.java:219) at 
 com.oracle.truffle.dsl.processor.parser.TypeSystemParser.parseTypes(TypeSystemParser.java:203) at com.oracle.truffle.dsl.processor.parser.TypeSystemParser.parse(TypeSystemParser.java:70) 
 at com.oracle.truffle.dsl.processor.parser.TypeSystemParser.parse(TypeSystemParser.java:39) at com.oracle.truffle.dsl.processor.parser.AbstractParser.parse(AbstractParser.java:64) at 
 com.oracle.truffle.dsl.processor.AnnotationProcessor.process(AnnotationProcessor.java:76) at com.oracle.truffle.dsl.processor.TruffleProcessor.processElement(TruffleProcessor.java:89) at 
 com.oracle.truffle.dsl.processor.TruffleProcessor.processImpl(TruffleProcessor.java:65) at com.oracle.truffle.dsl.processor.TruffleProcessor.process(TruffleProcessor.java:51) at 
 org.eclipse.jdt.internal.compiler.apt.dispatch.RoundDispatcher.handleProcessor(RoundDispatcher.java:139) at 
 org.eclipse.jdt.internal.compiler.apt.dispatch.RoundDispatcher.round(RoundDispatcher.java:121) at 
 org.eclipse.jdt.internal.compiler.apt.dispatch.BaseAnnotationProcessorManager.processAnnotations(BaseAnnotationProcessorManager.java:159) at 
 org.eclipse.jdt.internal.apt.pluggable.core.dispatch.IdeAnnotationProcessorManager.processAnnotations(IdeAnnotationProcessorManager.java:134) at 
 org.eclipse.jdt.internal.compiler.Compiler.processAnnotations(Compiler.java:818) at org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java:434) at 

-- 
Stefan Marr
INRIA Lille - Nord Europe
http://stefan-marr.de/research/