[FREEMARKER-70] Loop Variables Not Resolving when used in string interpolations

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.3.26-incubating
• Fix Version/s: 2.3.27-incubating
• Component/s: engine
• Assignee: Unassigned
• Reporter: Bill Parkinson
• Created: 11/Aug/17 14:36
• Updated: 03/Nov/17 16:22
• Resolved: 11/Aug/17 22:27

Description

When invoking a macro inside of a #list the loop variable is not in scope to be used resolving the argument values to the macro call.

Example

<#macro button caption>
content irrelevant.
</#macro>


<#list ["a","b","c"]>
<#items as loopvar>
${loopvar?counter} -- works
${loopvar?index} -- works
<p class="${loopvar?index}"> -- works
<@button caption="${loopvar?index}" /> -- FAILS
</#items>
</#list>

The @button macro call fails with the message:
The left hand operand of ?index must be a loop variable, but there's no loop variable in scope with this name: loopvar

Shouldn't loopvar be in scope for evaluating those macro argument values?