Eclipse Community Forums: TMF (Xtext) » Customizing ScopeProvider for cross references using JvmReferenceType (XBase)

Help

Home

Home » Modeling » TMF (Xtext) » Customizing ScopeProvider for cross references using JvmReferenceType (XBase)

Show: Today's Messages :: Show Polls :: Message Navigator

Customizing ScopeProvider for cross references using JvmReferenceType (XBase) [message #1276569]

Mon, 24 March 2014 18:49

George Best

Messages: 4
Registered: March 2014

Junior Member

In the following post I describe a cross reference resolution problem when using Xbase and JvmReferenceType.

The following error message appears:
"Couldn't resolve reference to ViewState '...' "

Please find the following snippet of my grammar file:

********************************************************

StartState:
'start' state=[ViewState]
;

ViewState:
'state' type=JvmTypeReference '{'
(triggers+=Trigger)+
'}'
;

Trigger:
'on' name=ID '{'
(transitions+=Transition)
'}'
;

Transition:
'transition to' targetstate=[ViewState]
;

********************************************************

When a concrete 'state' (rule ViewState) has been defined, the cross-reference [ViewState] is not visible for the key-words 'start' and 'transition to' (the imports for the JvmTypeReference =Java-Classes are already been automtically inserted via the launched eclipse editor).

Can someone direct me to the right way, how a customized scope provider needs to be prepared for this issue.

I already found out, that in case of Xbase-Grammar, the AbstractDeclarativeScopeProvider cannot be used and the XBaseScopeProvider is deprecated within Xtext SDK 2.4.3.

So how is it possible to introduce a special scope provider which works together with Xbase and the mentioned problem?

Thank you for your help in advance.

[Updated on: Tue, 25 March 2014 10:38]

Report message to a moderator