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Bug 326653

Summary:	There is a major bug in the tutorial
Product:	[Modeling] TMF	Reporter:	Philip May <eniak.info>
Component:	Xtext	Assignee:	Jan Koehnlein <jan>
Status:	CLOSED FIXED	QA Contact:
Severity:	normal
Priority:	P3	CC:	eniak.info, jan, sebastian.zarnekow, tmf.xtext-inbox
Version:	unspecified	Flags:	sebastian.zarnekow: indigo+
Target Milestone:	M3
Hardware:	All
OS:	All
Whiteboard:

Description Philip May

2010-09-30 05:42:36 EDT

Build Identifier: M20100909-0800

The first grammar in the tutorial has a bug:
http://www.eclipse.org/Xtext/documentation/1_0_0/xtext.html

Fere is the complete grammar (with the bug):
grammar org.eclipse.xtext.example.Domainmodel 
  with org.eclipse.xtext.common.Terminals
  
generate domainmodel "http://www.eclipse.org/xtext/example/Domainmodel"  

DomainModel :
  (elements+=Entity)*;
  
Type:
  DataType | Entity;
  
DataType:
  'datatype' name=ID;
 
Entity:
  'entity' name=ID ('extends' superType=[Entity])? '{'
    (features+=Feature)*
  '}';
 
Feature:
  name=ID ':' type=TypeRef;
  
TypeRef:
  referenced=[Type] (multi?='*')?;

This whould be axchanged:

DomainModel :
  (elements+=Entity)*;

with this:

DomainModel:
  (elements+=AbstractElement)*;

AbstractElement :
  Entity | DataType;

This bug should be fixed soon cause it's very frustrating for new users who
want to try out Xtext.

Reproducible: Always

Steps to Reproduce:
Just follow the tutorial and you will see...

Comment 1 Philip May

2010-10-07 04:05:47 EDT

There is a more simple solution.
Just replace this:

DomainModel :
  (elements+=Entity)*;

with this:

DomainModel:
  (elements+=Type)*;

Comment 2 Jan Koehnlein

2010-10-07 10:20:04 EDT

Fixed in HEAD

Comment 3 Karsten Thoms

2017-09-19 16:59:27 EDT

Closing all bugs that were set to RESOLVED before Neon.0

Comment 4 Karsten Thoms

2017-09-19 17:10:57 EDT

Closing all bugs that were set to RESOLVED before Neon.0