Bug 412430 - grammars derived from Ecore handle mandatory boolean EAttributes wrong
Summary: grammars derived from Ecore handle mandatory boolean EAttributes wrong
Status: NEW
Alias: None
Product: TMF
Classification: Modeling
Component: Xtext (show other bugs)
Version: 2.4.2   Edit
Hardware: PC Mac OS X
: P3 normal (vote)
Target Milestone: ---   Edit
Assignee: Project Inbox CLA
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Reported: 2013-07-05 14:10 EDT by Moritz Eysholdt CLA
Modified: 2013-09-03 03:01 EDT (History)
1 user (show)

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Description Moritz Eysholdt CLA 2013-07-05 14:10:25 EDT 
when creating an Xtext grammar form an existing Ecore model and this model contains an EAttribute of type EBoolean with lowerBound=1, then the generated assignment in the grammar is not optional. e.g. Foo: bar?='bar'; Therefore, it becomes impossible to create models with the attribute value set to false.

Expectation: assignment for boolean attributes should always be optional, e.g.: Foo: bar?='bar'?;