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Decision can match input such as "RULE_ID" using multiple alternatives [message #1806134]

Fri, 03 May 2019 10:20

Marshall Charron

Messages: 72
Registered: August 2018

Member

Hi,

I am implementing a DSL using Xtext, at some point in my syntax I want to write something like :

object instanceOfObject in user1

object instanceOfObject.port1 in user1

object user1 out user2

object user1 out role1

Here is the syntax I tried, but I get this error :

Decision can match input such as "RULE_ID" using multiple alternatives: 1, 2

Could you see the problem ? From your experience what would be the best strategy for the syntax I want to accomplish ?

Object:
	'object' (name=ID ':')?  attributeSubject=attributeSubjectObject effect=Effect commObject=attributeSubjectObject
;

attributeSubjectObject:
	(attributeSubject=[SubjectAny] (attributeSubjectElements=SubjectElements)?) | otherCommSubjets=[OtherSubjets]
;

Effect:
	in='in' | 
	out='out'
;

SubjectElements:
	ObjectPort | ObjectState
;

SubjectAny:
	Object | InstanceObject
;

OtherSubjets:
	Role | User
;

Thanks a lot

[Updated on: Fri, 03 May 2019 10:21]

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