Description Moritz Eysholdt 2011-05-20 10:44:30 EDT

for grammar

---
grammar SimpleUnorderedGroupsTestLanguage with UnorderedGroupsTestLanguage
 
DelegateModel returns Model: Model;
---

and 

---
grammar UnorderedGroupsTestLanguage with common.Terminals
 
Model: {Model} ...;
---

the SimpleUnorderedGroupsTestLanguageSyntacticSequencer delegates to UnorderedGroupsTestLanguageSyntacticSequencer for context DelegateModel.

However, in the UnorderedGroupsTestLanguageSyntacticSequencer this context is unknown.

This delegation happens because all AbstractElements within the constraint come from rule "Model".

Plan 1: don't delegate.
Plan 2: map the context.

The behavior can be observed in 
org.eclipse.xtext.parser.unorderedGroups.SerializerTest