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toField and newTypeRef question [message #1434811]

Tue, 30 September 2014 12:32

Eclipse User

Hi all!

I'm having a trouble with the following simple situation. I took the greeting sample and changed the jvm model inferrer to:

class MyDslJvmModelInferrer extends AbstractModelInferrer {

   	def dispatch void infer(Model element, IJvmDeclaredTypeAcceptor acceptor, boolean isPreIndexingPhase) {
		acceptor.accept(element.toClass('Greeting')).initializeLater[
			members += element.toField('texts', element.newTypeRef(List, element.newTypeRef(String)))
		]
   	}

}

The generated code is as follows:

@SuppressWarnings("all")
public class Greeting {
  private java.util.List texts;
}

There are two things I'm having trouble with:

1) Why is List not parametrized with String? I thought I've specified it explicitly in newTypeRef...
2) Is there any way to automatically generate the imports section so that simple names are used in code (where possible, in case of simple name collissions - stick with the fully qualified name)? If yes, how can this be achieved?

Thanks in advance! Razz

Re: toField and newTypeRef question [message #1435220 is a reply to message #1434811]

Wed, 01 October 2014 03:13

Eclipse User

Hi Alex,

the code you wrote should work just fine. Which Java compiler version is
configured in your project? Is it 1.4 by accident? Also the imports
should be maintained automatically. Also for those, the generated code
that you posted indicates a problem with your project config. Maybe it's
not the Java version but a missing JRE?
If the problem persists, could you please file a ticket and attach a
reproducable example?

Best,
Sebastian
--
Looking for professional support for Xtext, Xtend or Eclipse Modeling?
Go visit: http://xtext.itemis.com

Re: toField and newTypeRef question [message #1435566 is a reply to message #1435220]

Wed, 01 October 2014 13:39

Eclipse User

Hi Sebastian,

you were right - the reason was missing JRE. I thought that java comes into play only when (and if) generated code is compiled. But it turns out it is required during code generation phase too. Anyway, thanks for help.

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