Bug 365368

Comment 1 Jan Koehnlein 2011-12-01 18:24:29 EST

Did you try quoting it with a '^' in the Xtend code?

Comment 2 McKinley 2011-12-02 01:53:51 EST

That works, but 'as' is not show in code completion. It should be shown and if possible, the '^' inserted if 'as' is selected from content assist. Also, '^' does not have a very high-profile placement in the documentation. I did not know about it until you suggested it. Now I see it is mentioned here: http://www.eclipse.org/Xtext/documentation/2_1_0/02-Xtend_Classes_Functions.php#imports

Thanks for your help with the escaping.

(In reply to comment #1)
> Did you try quoting it with a '^' in the Xtend code?

Comment 3 Sebastian Zarnekow 2011-12-02 09:48:45 EST

ContentAssist should show the escaped version if there is no alternative, e.g.

Object#getClass should not be shortened to ^class in CA (event though it's valid) while Something#extension() can only be proposed as ^extension

Comment 4 Sebastian Zarnekow 2012-01-31 06:00:18 EST

The missing proposal is probably caused by 

java.lang.ClassCastException: org.eclipse.xtext.xbase.impl.XBlockExpressionImpl cannot be cast to org.eclipse.xtext.xtend2.xtend2.XtendClass
	at org.eclipse.xtext.xtend2.ui.contentassist.Xtend2ProposalProvider.completeClass_Members(Xtend2ProposalProvider.java:151)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.eclipse.xtext.util.PolymorphicDispatcher.invoke(PolymorphicDispatcher.java:291)
	at org.eclipse.xtext.ui.editor.contentassist.AbstractJavaBasedContentProposalProvider.invokeMethod(AbstractJavaBasedContentProposalProvider.java:271)
	at org.eclipse.xtext.ui.editor.contentassist.AbstractJavaBasedContentProposalProvider.completeAssignment(AbstractJavaBasedContentProposalProvider.java:185)
	at org.eclipse.xtext.ui.editor.contentassist.AbstractContentProposalProvider$DefaultContentAssistProcessorSwitch.caseAssignment(AbstractContentProposalProvider.java:66)
	at org.eclipse.xtext.ui.editor.contentassist.AbstractContentProposalProvider$DefaultContentAssistProcessorSwitch.caseAssignment(AbstractContentProposalProvider.java:1)
	at org.eclipse.xtext.util.XtextSwitch.doSwitch(XtextSwitch.java:164)
	at org.eclipse.xtext.util.XtextSwitch.doSwitch(XtextSwitch.java:70)
	at org.eclipse.xtext.util.XtextSwitch.doSwitch(XtextSwitch.java:58)
	at org.eclipse.xtext.ui.editor.contentassist.AbstractContentProposalProvider$DefaultContentAssistProcessorSwitch.accept(AbstractContentProposalProvider.java:71)
	at org.eclipse.xtext.ui.editor.contentassist.AbstractContentProposalProvider.createProposals(AbstractContentProposalProvider.java:108)
	at org.eclipse.xtext.ui.editor.contentassist.AbstractJavaBasedContentProposalProvider.createProposals(AbstractJavaBasedContentProposalProvider.java:246)
	at org.eclipse.xtext.ui.editor.contentassist.CompletionProposalComputer.exec(CompletionProposalComputer.java:51)
	at org.eclipse.xtext.ui.editor.contentassist.CompletionProposalComputer.exec(CompletionProposalComputer.java:1)
	at org.eclipse.xtext.util.concurrent.AbstractReadWriteAcces.readOnly(AbstractReadWriteAcces.java:32)
	at org.eclipse.xtext.ui.editor.model.XtextDocument.readOnly(XtextDocument.java:78)
	at org.eclipse.xtext.ui.editor.contentassist.XtextContentAssistProcessor.computeCompletionProposals(XtextContentAssistProcessor.java:68)
	at org.eclipse.xtext.ui.editor.contentassist.RepeatedContentAssistProcessor.computeCompletionProposals(RepeatedContentAssistProcessor.java:73)
	at org.eclipse.jface.text.contentassist.ContentAssistant.computeCompletionProposals(ContentAssistant.java:1830)
	at org.eclipse.jface.text.contentassist.CompletionProposalPopup.computeProposals(CompletionProposalPopup.java:556)
	at org.eclipse.jface.text.contentassist.CompletionProposalPopup.access$16(CompletionProposalPopup.java:553)

Comment 5 Sebastian Zarnekow 2012-01-31 06:48:51 EST

Turns out that the exception is not the causer of the problem.

Comment 6 Sven Efftinge 2012-11-08 08:54:35 EST

*** Bug 381983 has been marked as a duplicate of this bug. ***

Comment 7 McKinley 2013-02-20 03:36:05 EST

I checked in 2.4 and did not see .^as in content assist. I think this is important because it will turn into an infamous FAQ if it does not. Also, I think

1) .^as should show alphabetically with other .a properties, not at the top
2) .^as should show in content assist even if you start to type .a and not .^a

Thanks

Comment 8 Anton Kosyakov 2013-02-21 11:48:06 EST

See gerrit https://git.eclipse.org/r/#/c/10572/

Comment 9 Sven Efftinge 2013-02-21 12:20:23 EST

approved and submitted. Thanks, Anton

Comment 10 McKinley 2013-03-05 16:17:48 EST

This is improved in 2.4.0.v201303050101, but it has a problem still.

It behaves like this now:

obj.[aaa, as, bbb]
obj.^[as]
obj.a[aaa]

The last item should behave:

obj.a[aaa, as]

If it doesn't behave this way, many people will type obj.a[...] and not see 'as' in the content assist. They may assume that Xtend does not support existing Java APIs. They should be spared the confusion.

Comment 11 Sebastian Zarnekow 2013-03-07 07:10:12 EST

Pushed to master

Comment 12 Eclipse Webmaster 2017-10-31 11:24:30 EDT

Requested via bug 522520.

-M.