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Bug 327649

Summary:	List with null values is evaluated to inner type Void
Product:	[Modeling] M2T	Reporter:	Steffen Stundzig <stundzig>
Component:	Xpand	Assignee:	Project Inbox <m2t.xpand-inbox>
Status:	CLOSED DUPLICATE	QA Contact:
Severity:	major
Priority:	P3	CC:	karsten.thoms
Version:	unspecified	Flags:	karsten.thoms: kepler+
Target Milestone:	M4
Hardware:	All
OS:	All
Whiteboard:

Description Steffen Stundzig

2010-10-13 07:44:24 EDT

If i've traverse a collection with elements and access a property which returns null, the next calls to the elements in this list breaks the workflow.

For example:

MyListProperty.ThePropertyWhichIsNullForAllElementsInTheList.shortName;

causes a:

AbstractExpressionsUsingWorkflowComponent - Error in Component  of type org.eclipse.xpand2.Generator: 
	EvaluationException : Couldn't find property 'shortName' for inner type Void'

As workaround I can use:

MyListProperty.ThePropertyWhichIsNullForAllElementsInTheList.collect(e|e.shortName);

which returns the List with null-Elements. But this should be the default behaviour also in short Syntax as in the example above.

Comment 1 Karsten Thoms

2012-10-31 07:35:35 EDT

Fixed with bug#386253

Added test case EvaluationTest#testFeatureCallReturningNull()

*** This bug has been marked as a duplicate of bug 386253 ***

Comment 2 Karsten Thoms

2013-02-07 06:16:13 EST

Part of Kepler M4 (Version 1.3.0)

Comment 3 Eclipse Webmaster

2017-10-31 10:48:41 EDT

Requested via bug 522520.

-M.

Comment 4 Eclipse Webmaster

2017-10-31 10:59:43 EDT

Requested via bug 522520.

-M.