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Re: [Xtext2] Extending Xbase expressions [message #663701]

Wed, 06 April 2011 09:02

Sven Efftinge

Messages: 1823
Registered: July 2009

Senior Member

Please note, that the Xtext newsgroup is eclipse.modeling.tmf.

Am 4/6/11 9:39 AM, schrieb Ingo Meyer:
>
> XLiteral:
> XClosure |
> XBooleanLiteral |
> XIntLiteral |
> XDecimalLiteral |
> XNullLiteral |
> XStringLiteral |
> XTypeLiteral
> ;
>
>
> but got "Cannot add supertype 'XLiteral' to sealed type 'XExpression'."

You need to explicitly declare the return type:

XLiteral returns XExpression :
...
;

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Re: [Xtext2] Extending Xbase expressions (SOLVED) [message #663733 is a reply to message #663701]

Wed, 06 April 2011 11:09

Ingo Meyer

Messages: 162
Registered: July 2009

Senior Member

Oh yes, but this was just a copy-paste mistake for the text here.
Originally I had this return type.

My mistake was, that I forgot the import:

import "platform:/resource/org.eclipse.xtext.xbase/model/Xbase.ecore"

Thanks,

Ingo

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