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XbaseScopeProvider in Xtext 2.4 [message #1028430]

Thu, 28 March 2013 08:43

Lorenzo Bettini

Messages: 1812
Registered: July 2009
Location: Firenze, Italy

Senior Member

Hi

looks like XbaseScopeProvider is now deprecated in Xtext 2.4 (and also
some methods have changed, thus my custom overridden versions do not
seem to work anymore); is a migration guide available already?

thanks in advance
Lorenzo

--
Lorenzo Bettini, PhD in Computer Science, DI, Univ. Torino
HOME: http://www.lorenzobettini.it

HOME: http://www.lorenzobettini.it
TDD Book: https://leanpub.com/tdd-buildautomation-ci
Xtext Book: https://www.packtpub.com/application-development/implementing-domain-specific-languages-xtext-and-xtend-second-edition

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Re: XbaseScopeProvider in Xtext 2.4 [message #1028711 is a reply to message #1028430]

Thu, 28 March 2013 16:39

Hallvard Traetteberg

Messages: 673
Registered: July 2009
Location: Trondheim, Norway

Senior Member

I asked a similar question and was told they were working on the
migration guide, and that the target was the Kepler release. I hope it
comes a bit earlier than that.

They seem to have switched to XbaseBatchScopeProvider, try extending
that one instead.

Hallvard

On 28.03.13 01.43, Lorenzo Bettini wrote:
> Hi
>
> looks like XbaseScopeProvider is now deprecated in Xtext 2.4 (and also
> some methods have changed, thus my custom overridden versions do not
> seem to work anymore); is a migration guide available already?
>
> thanks in advance
> Lorenzo
>

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Re: XbaseScopeProvider in Xtext 2.4 [message #1028715 is a reply to message #1028711]

Thu, 28 March 2013 16:44

Christian Dietrich

Messages: 14665
Registered: July 2009

Senior Member

Hi,

i think the guys a busy with eclipse con so it may take some time

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

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Re: XbaseScopeProvider in Xtext 2.4 [message #1060732 is a reply to message #1028715]

Tue, 28 May 2013 09:37

Victor Noël

Messages: 112
Registered: June 2010

Senior Member

Hi, any news about that?

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Re: XbaseScopeProvider in Xtext 2.4 [message #1073705 is a reply to message #1060732]

Thu, 25 July 2013 10:43

Victor Noël

Messages: 112
Registered: June 2010

Senior Member

Hi,

Just for the record, the solution is that content assist still uses XbaseScopeProvider while the rest of the system uses XbaseBatchScopeProvider.

A good way of pluging-in in (ouch, lot of in Wink

the system is to specialises XImportSectionNamespaceScopeProvider (used by both) and, if desired, delegates to a homemade DeclarativeScopeProvider there.

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Re: XbaseScopeProvider in Xtext 2.4 [message #1074016 is a reply to message #1073705]

Thu, 25 July 2013 23:57

Ian McDevitt

Messages: 70
Registered: December 2012
Location: Belfast

Member

I had similar problems but a slightly different solution when moving to 2.4. I stopped using the XbaseScopeProvider because it was deprecated and just used the DeclarativeScopeProvider. But then my content assist broke and my ProposalProvider threw exceptions because its (generated) super class was still expecting my scope provider to be Xbase and was casting to it regardless.

After many dead ends of recoding I have it working again by moving ALL my scope calculations to my delegate ImportedNamespaceAwareLocalScopeProvider AND not overriding the main ScopeProvider at all (removed from Runtime module).

This feels better than having some of the scope work split but it was a lengthy path to refactor at the time.

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