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https://issues.apache.org/jira/browse/VELOCITY-774?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Nathan Bubna resolved VELOCITY-774.
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Resolution: Won't Fix
#set( $foo = $null )
or put your context into itself and do:
#set( $ignore = $!context.remove($foo) )
or in 1.7+ enable the particular explicit scope that you need:
macro.provide.scope.control = true
and then do:
$macro.foo = 'whatever'
and when the macro is gone, $macro.foo will be gone too.
> Provide #unset directive
> ------------------------
>
> Key: VELOCITY-774
> URL: https://issues.apache.org/jira/browse/VELOCITY-774
> Project: Velocity
> Issue Type: New Feature
> Components: Engine
> Affects Versions: 1.7-beta1
> Reporter: Michael Osipov
>
> Sometimes one wants to use a variable in a certain scope because the further
> existence might lead to errors. I declared var with #set should be
> unsettable. See VELOCITY-773 for a iuse case.
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