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Rule is treated as Uncalled rule even if called [message #1280937]

Mon, 31 March 2014 05:42

chris yo

Messages: 146
Registered: February 2013

Senior Member

I have 2 xtext files:

Rule1.xtext is the main grammar file.

grammer org.Rule1 with org.Rule2
generate rule1 "http://www.Rule1.org"
Model:
  def+=Test*
;

Test:
  Hello | Goodbye
;

Hello:
  'Hi' name=ID greet=Greeting
;

Goodbye:
  'Bye' name=ID close=Closing '!'
;

Rule2.xtext

grammar org.Rule2 with org.eclipse.xtext.common.Terminals
generate rule2 "http://www.Rule2.org"

Greeting:
 'HOW' 'ARE' 'YOU' '?' name=ID
;

Closing:
'SEE' 'YOU' 'AGAIN' name=ID '!'
;

I am wondering why the rule Closing is in gray (uncalled rule) even if it is being called in rule1.xtext..?

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Re: Rule is treated as Uncalled rule even if called [message #1280948 is a reply to message #1280937]

Mon, 31 March 2014 06:08

Christian Dietrich

Messages: 14665
Registered: July 2009

Senior Member

It is not called since you do NOT use the with clause.

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: Rule is treated as Uncalled rule even if called [message #1280959 is a reply to message #1280948]

Mon, 31 March 2014 06:34

Christian Dietrich

Messages: 14665
Registered: July 2009

Senior Member

So do not care since the rule is abstract by your semantics

--
Need training, onsite consulting or any other kind of help for Xtext?
Go visit http://xtext.itemis.com or send a mail to xtext at itemis dot de

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: Rule is treated as Uncalled rule even if called [message #1280968 is a reply to message #1280959]

Mon, 31 March 2014 06:54

chris yo

Messages: 146
Registered: February 2013

Senior Member

Hi Christian,

I am using the with clause in both the grammar file.
Rule1.xtext --> grammer org.Rule1 with org.Rule2
Rule2.xtext --> grammar org.Rule2 with org.eclipse.xtext.common.Terminals

I do not want the rule to be in gray if it is called, because this will make it hard for me to debug later. Is there a way not to make it abstract?

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Re: Rule is treated as Uncalled rule even if called [message #1281005 is a reply to message #1280968]

Mon, 31 March 2014 08:01

Uli Merkel

Messages: 250
Registered: June 2013

Senior Member

seen from your Rule2.xtext only, closing is not called.
In it's scope, xtext is not aware that this grammar is used with Rule1.xtext grammar

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Re: Rule is treated as Uncalled rule even if called [message #1281007 is a reply to message #1280968]

Mon, 31 March 2014 08:00

Christian Dietrich

Messages: 14665
Registered: July 2009

Senior Member

Hi Xtext cannot check all grammars in the world if your grammar is
subclassed somewhere

--
Need training, onsite consulting or any other kind of help for Xtext?
Go visit http://xtext.itemis.com or send a mail to xtext at itemis dot de

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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