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[xtext-dev] Content Assist in Xtend
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Hi,
I've just committed the first shot at the xtend interface for content
assist. There's a new plug-in, so make sure you update your WS using
the team project set.
Xtend content assist is always generated but disabled by default. To
enable it, override the IContentAssistInvocationHandler service for
your language as done in
/org.eclipse.xtext.ui.common.tests/src/org/eclipse/xtext/testlanguages/
ContentAssistTestLanguageUiConfig.java
Currently, I use very bad pattern in the ui.common.tests to recycle
the tests from the Java impl. I haven't introduced a service in the
generator yet, as it would collide with the Java CA. We should find a
common solution here.
Some more observations:
- In Xtend, dealing with a JavaMetamodel and an EmfRegistryMetamodel
for ecore in parallel causes a lot of casting errors. You can work
around that by delegating some calls to Java to perform the casts e.g.
from ecore::EObject to org.eclipse.emf.ecore.EObject. Reordering the
metamodels in the ExecutionContext didn't help either. Maybe we find a
better solution.
- Overriding a service in the configuration looks horrible compared to
the initial deifnition. Maybe we should improve the syntax here.
-
org
.eclipse
.xtext
.ui
.common
.editor
.contentassist
.impl.AbstractProposalProvider.completeAssignment(Assignment,
IContentAssistContext) sometimes produces strange method names when
the default alias is used. Someone has to investigate.
Best regards
Jan
--
Dr. Jan Köhnlein
Senior Software Architekt
Telefon: +49 (0) 431 / 5606-337
Mobile: +49 (0) 163 / 3979 776
Telefax: +49 (0) 431 / 5606-339
http://www.itemis.de
jan.koehnlein@xxxxxxxxx
itemis AG
Schauenburgerstr. 116
24118 Kiel
Rechtlicher Hinweis:
Amtsgericht Dortmund, HRB 20621
Vorstand: Wolfgang Neuhaus, Jens Wagener, Dr. Georg Pietrek
Aufsichtsrat: Prof. Dr. Burkhart Igel (Vors.) Stephan Grollmann,
Michael Neuhaus
