Bug 425260 - [serializer] empty lists should be transient by default
Summary: [serializer] empty lists should be transient by default
Status: NEW
Alias: None
Product: TMF
Classification: Modeling
Component: Xtext (show other bugs)
Version: 2.4.3   Edit
Hardware: PC Mac OS X
: P3 normal (vote)
Target Milestone: ---   Edit
Assignee: Project Inbox CLA
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Reported: 2014-01-10 04:51 EST by Moritz Eysholdt CLA
Modified: 2014-01-10 04:51 EST (History)
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Description Moritz Eysholdt CLA 2014-01-10 04:51:22 EST 
Example:


Rule: "none" | "{" vals+=ID* "}"


For an empty vals-list, serialization is ambiguous. The preference should be given to "none", because it's the left-most valid case in the alternative.

This doesn't happen at the moment since lists are not marked as transient when they're empty.


also check if 
Rule: "none" | "{" vals+=ID+ "}"
can can lead to serialization errors for empty vals-list.