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Couldn´t find definition for [message #528312]

Tue, 20 April 2010 07:07

Daniel Stieger

Messages: 24
Registered: April 2010

Junior Member

Hello,

i have error bullet points in the problem window of eclispe, when i edit xpand files. Obviously the problem has to do something with polymorphism.

I have the following inheritance hierarchie defined in xtext:

DAField:
DAElementaryInt | DAElementaryFloat;

Now in xpand i wrote

«EXPAND dotfieldsyntax FOREACH fields SEPARATOR "|"-»

and i implemented two defines :
«DEFINE dotfieldsyntax FOR DAElementaryInt»<«objectFieldRefName()»>(Int) «this.name»«ENDDEFINE»
«DEFINE dotfieldsyntax FOR DAElementaryFloat»<«objectFieldRefName()»>(Float) «this.name»«ENDDEFINE»

but i receive a error message in the editor:
"Couldn't find definition dotfieldsyntax for type mState::DAField"

However, the template works! But the whole editor is completle red....

How could i solve this probleme?
Best,
Daniel

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Re: Couldn´t find definition for [message #528316 is a reply to message #528312]

Tue, 20 April 2010 07:22

MaximeLecourt

Messages: 108
Registered: February 2010
Location: France

Senior Member

I have been having the same problem, in my case DAField is even defined as abstract.

You have to create a Define for DAField.
Mine sends an error message, as it should never be used.

One day I shall master M2T, but that day has yet to come...

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Re: Couldn´t find definition for [message #528335 is a reply to message #528316]

Tue, 20 April 2010 08:14

Daniel Stieger

Messages: 24
Registered: April 2010

Junior Member

Hi,

thanks for the answer. I defined DAField now directly -> What doesn´t make sense

«DEFINE dotfieldsyntax FOR DAField» --- ERROR2 --- «ENDDEFINE»

But there error bullets will leave. Is there no other solution?

Dan

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Re: Couldn´t find definition for [message #528371 is a reply to message #528335]

Tue, 20 April 2010 09:52

Darius Jockel

Messages: 63
Registered: July 2009

Member

Hello,

the xpand editor expect also a DEFINE for the most common type of an collection. This is because Xpand do not know about the constraints in your DSL. What about if you define a DSL wihout the concept 'abstract'?
So every MetaModelAdapter should have to tell the editor about this concept and how it is realized?
Also it is convenience-feature for you ( Smile

) :
* If you add another subtype of DAElementary, your templats will work. So the templates are more robust.

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Re: Couldn´t find definition for [message #528383 is a reply to message #528371]

Tue, 20 April 2010 10:44

Daniel Stieger

Messages: 24
Registered: April 2010

Junior Member

Yes i see. This is correct. If i ll define another Type in the DSL, but i do not update the template, i ll get my --- ERROR --- notification in the generated artifact.

Thanks a lot for your comments,
Dan

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