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https://issues.apache.org/jira/browse/FREEMARKER-21?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15863043#comment-15863043
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Pedro M. Zamboni commented on FREEMARKER-21:
--------------------------------------------
Since the right‐hand‐side of the {{as}} clause in {{list}} isn’t an expression,
I can’t see how this would introduce an ambiguity. It should be easy to simply
consider the last {{as}} in the expression as the one that is part of the
{{list}} syntax, and the rest as creating a new variable.
Either way, I can’t really say I like this feature. It’s not like declaring a
variable is too hard:
{code}
<#local value=someVariable.someMethod.someProperty>
<#if value??>
${value}
</#if>
{code}
It seems to me that this feature will help decrease code readability, as you
can have {{as}} deep inside a complex expression.
> Reference to the object in condition - avoid repeating the same in #if and
> ${...}
> ---------------------------------------------------------------------------------
>
> Key: FREEMARKER-21
> URL: https://issues.apache.org/jira/browse/FREEMARKER-21
> Project: Apache Freemarker
> Issue Type: New Feature
> Components: engine
> Reporter: Ondra Žižka
>
> Repeating stuff is annoying, especially in programming.
> Therefore this is annoying:
> {code}
> <#if someVariable.someMethod.someProperty??>
> <div>${someVariable.someMethod.someProperty}</div>
> </#if>
> {code}
> This would be better:
> {code}
> <#if someVariable.someMethod.someProperty?? as value>
> <div>${value}</div>
> </#if>
> {code}
> Not talking about the fact that it could only be evaluated once.
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