[jira] Resolved: (VELOCITY-774) Provide #unset directive

["Nathan Bubna (JIRA)" <de...@velocity.apache.org>]

     [ https://issues.apache.org/jira/browse/VELOCITY-774?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Nathan Bubna resolved VELOCITY-774.
-----------------------------------

    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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