[furcas-discussion] [IMP] Incremental Lexer Crashes

[Uhl, Axel]

Did I miss something? Which of the horrible EMF element lifecycle aspects was at fault and how?

Cheers,
-- Axel

From: furcas-discussion-bounces at lists.furcas.org [mailto:furcas-discussion-bounces at lists.furcas.org] On Behalf Of Thomas Goldschmidt
Sent: Friday, February 11, 2011 2:40 PM
To: furcas-discussion at lists.furcas.org
Subject: Re: [furcas-discussion] [IMP] Incremental Lexer Crashes


Thanks a lot! Sorry, that I had no time to do this myself.

One more things about the horrible model element lifecycle in EMF :(
[cid:image001.gif at 01CBC9FD.29193DA0]



Thomas Goldschmidt

ABB AG
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Stephan Erb <stephan at dev.static-void.de>
Sent by: furcas-discussion-bounces at lists.furcas.org

11.02.2011 14:37

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furcas-discussion at lists.furcas.org

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Subject

Re: [furcas-discussion] [IMP] Incremental Lexer Crashes







For the record: It's fixed in https://github.com/FURCAS-dev/FURCAS/commit/397d33c6ccc9b020041ed68fab741380cdd61a78

On Sat, 2011-02-05 at 15:58 +0100, Stephan Erb wrote:
> Hey Thomas,
>
> the IMP branch contains the first partially working IMP editor (see
> [1]). Unfortunately the incremental lexer is crashing regularly and I am
> unable to find the cause.
>
> The lexer dies with:
>
> java.lang.ArrayIndexOutOfBoundsException
>                  at java.lang.System.arraycopy(Native Method)
>                  at org.eclipse.emf.common.util.BasicEList.addUnique(BasicEList.java:446)
>                  at org.eclipse.emf.common.notify.impl.NotifyingListImpl.doAddUnique(NotifyingListImpl.java:393)
>                  at org.eclipse.emf.common.notify.impl.NotifyingListImpl.addUnique(NotifyingListImpl.java:377)
>                  at org.eclipse.emf.common.util.AbstractEList.add(AbstractEList.java:345)
>                  at com.sap.ide.cts.parser.incremental.IncrementalLexer.addTokenIfNecessaryAndUpdateOffetsAndLengths(IncrementalLexer.java:675)
>                  at com.sap.ide.cts.parser.incremental.IncrementalLexer.lexPhase(IncrementalLexer.java:528)
>                  at com.sap.ide.cts.parser.incremental.IncrementalLexer.lex(IncrementalLexer.java:160)
>                  at com.sap.ide.cts.parser.incremental.antlr.ANTLRIncrementalLexerAdapter.lex(ANTLRIncrementalLexerAdapter.java:301)
>                  at com.sap.furcas.ide.editor.imp.services.FurcasParseController.parse(FurcasParseController.java:138)
>                  at com.sap.furcas.ide.editor.commands.ParseCommand.execute(ParseCommand.java:30)
>
> At lines 518 and 519 within the IncrementalLexer we seem to have
> inconsistently versioned TextBlocks: We have a token and its parent
> block within the previous version. Now we map both to the current
> version. However, during this process, the parent child relation seems
> to get lost. The block does no longer contain the token.
>
> Given your experience with all this TextBlocks versioning, any idea
> where I should start digging?
>
> Thanks!
> Stephan
>
> PS: If you want to try it yourself you have to install IMP from
> <https://github.com/FURCAS-dev/FURCAS/commit/397d33c6ccc9b020041ed68fab741380cdd61a78> http://download.eclipse.org/technology/imp/updates/
>
>
> [1]
> <http://download.eclipse.org/technology/imp/updates/> https://github.com/FURCAS-dev/FURCAS/blob/imp/DSLEngineering/com.sap.furcas.ide.editor/src/com/sap/furcas/ide/editor/imp/
>
> _______________________________________________
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> Furcas-discussion at lists.furcas.org
> <https://github.com/FURCAS-dev/FURCAS/blob/imp/DSLEngineering/com.sap.furcas.ide.editor/src/com/sap/furcas/ide/editor/imp/> http://lists.furcas.org/cgi-bin/mailman/listinfo/furcas-discussion


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