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Bug 368908

Summary:

Endless Loop in Content Assist Parser

Product:

[Modeling] TMF

Reporter:

Ralph Mayr <ralph.mayr>

Component:

Xtext

Assignee:

Project Inbox <tmf.xtext-inbox>

Status:

NEW ---

QA Contact:

Severity:

normal

Priority:

CC:

karsten.thoms, ralph.mayr, sebastian.zarnekow

Version:

unspecified

Target Milestone:

---

Hardware:

OS:

Windows 7

Whiteboard:

Attachments:

Description	Flags
Simple grammar to reproduce the behavior	none
Test file	none

Description Ralph Mayr

2012-01-18 00:26:30 EST

Build Identifier: Version: 3.7.0 Build id: I20110613-1736

For details see the last few posts in http://www.eclipse.org/forums/index.php/m/775170/.

I was able to reproduce this behavior in 2.0.1 and the latest available 2.2.1 release.

Reproducible: Always

Steps to Reproduce:
1. Create an Xtext project with the attached grammar (MyDsl.xtext)
2. Generate, build and run the editor
3. Open the attached test file (test.mydsl)
4. Put the cursor behind the colon in line 1
5. Press CTRL+Space to invoke content assist

-> Endless loop in the InternalMyDslParser

Comment 1 Ralph Mayr

2012-01-18 00:27:02 EST

Created attachment 209656 [details]
Simple grammar to reproduce the behavior

Comment 2 Ralph Mayr

2012-01-18 00:27:30 EST

Created attachment 209657 [details]
Test file

Comment 3 Sebastian Zarnekow

2012-06-08 07:50:19 EDT

see also 382088

Comment 4 Sebastian Zarnekow

2013-04-19 08:38:37 EDT

Still reproducable.

Antlr error recovery fails on the emtpy 'Access' rule.

Comment 5 Karsten Thoms

2016-04-13 16:54:53 EDT

Still happens with 2.9