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https://issues.apache.org/jira/browse/FREEMARKER-12?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15012483#comment-15012483
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Diogo Kollross commented on FREEMARKER-12:
------------------------------------------
Maybe the documentation can be updated to explain this corner case.
One workaround until 2.4 is to create a function that always returns undefined:
{noformat}
<#function null>
</#function>
<#function inner>
<#return "inner value">
</#function>
<#function example>
<#local temp = inner()>
<#return null()>
</#function>
${example()!"will always return undefined"}
{noformat}
> #return value bubbles through functions
> ---------------------------------------
>
> Key: FREEMARKER-12
> URL: https://issues.apache.org/jira/browse/FREEMARKER-12
> Project: Apache Freemarker
> Issue Type: Bug
> Affects Versions: 2.3.23
> Reporter: Diogo Kollross
>
> The documentation says that "if ... there was no 'return returnValue', then
> the return value of the method is an undefined variable", but the behaviour
> I'm seeing is that any #return in inner method calls gets returned as if it
> was the caller's return value.
> In the following example the expected result is an undefined value, but it
> shows "inner value".
> {noformat}
> <#function inner>
> <#return "inner value">
> </#function>
> <#function example>
> <#local temp = inner()>
> </#function>
> ${example()}
> {noformat}
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