[jira] [Commented] (VELOCITY-904) Add a flag for better backward compatibility with null macro arguments

[Thomas Mortagne (Jira)]

[ 
https://issues.apache.org/jira/browse/VELOCITY-904?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17021301#comment-17021301
 ] 

Thomas Mortagne commented on VELOCITY-904:
--

OK great it was a tricky one to explain :)

> Add a flag for better backward compatibility with null macro arguments
> --
>
> Key: VELOCITY-904
> URL: https://issues.apache.org/jira/browse/VELOCITY-904
> Project: Velocity
>  Issue Type: Improvement
>  Components: Engine
>Affects Versions: 2.0
>Reporter: Claude Brisson
>Assignee: Claude Brisson
>Priority: Minor
> Fix For: 2.2
>
>
> See [this 
> comment|https://issues.apache.org/jira/browse/VELOCITY-542?focusedCommentId=16621819=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-16621819]
>  :
> {code}
> #macro(testmacro $parameter)
>   $parameter
> #end
> #testmacro($return)
> {code}
> bq. which used to print "$return" (when $return is null or undefined) and we 
> now get "$parameter". 
>  



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[jira] [Commented] (VELOCITY-904) Add a flag for better backward compatibility with null macro arguments

[Claude Brisson (Jira)]

[ 
https://issues.apache.org/jira/browse/VELOCITY-904?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17021252#comment-17021252
 ] 

Claude Brisson commented on VELOCITY-904:
-

Yes, very much. I'll reproduce it and move it to a new issue if confirmed.

> Add a flag for better backward compatibility with null macro arguments
> --
>
> Key: VELOCITY-904
> URL: https://issues.apache.org/jira/browse/VELOCITY-904
> Project: Velocity
>  Issue Type: Improvement
>  Components: Engine
>Affects Versions: 2.0
>Reporter: Claude Brisson
>Assignee: Claude Brisson
>Priority: Minor
> Fix For: 2.2
>
>
> See [this 
> comment|https://issues.apache.org/jira/browse/VELOCITY-542?focusedCommentId=16621819=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-16621819]
>  :
> {code}
> #macro(testmacro $parameter)
>   $parameter
> #end
> #testmacro($return)
> {code}
> bq. which used to print "$return" (when $return is null or undefined) and we 
> now get "$parameter". 
>  



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