Grails TagLib calling stored body from nested tag -

we setting generalized tag table views.

i need build header cols , content cols. in order provide flexible output content cols want take use of tag body. otherwise use code attribute default output.

the strange thing happens in cell tag:

the first call

//println body?.call(item:[id:4])  // "item 4" 

results in expected result. second call (wrapped in closure , temporarily stored in page scope )

//println body?.call(item:[id:4]) // "item" 

does not take use of provided closure params.

as seems in cell tag

println "${body.maximumnumberofparameters}" // = 1 

and executed @ later point:

println "${body.maximumnumberofparameters}" // = 0 

anyone knows more situation or internals of groovypagetagbody?

thx in advance.

taglib:

class pagecomponentstaglib{      def table = { attrs, body ->         map model = [:]          pagescope._v_cols = []         body()         model << [columns:pagescope._v_cols]         pagescope.variables.remove('_v_cols')          model << [items:attrs.items]         out << render(template:'/taglib/p/table', model:model)     }      def cell = { attrs, body ->         //println body?.call(item:[id:4])  // "item 4"         //println "${body.maximumnumberofparameters}" // = 1         pagescope._v_cols << [field:attrs.field, headerlabelcode:attrs.headerlabelcode, content:{ item ->             //println body?.call(item:[id:4]) // "item"             //println "${body.maximumnumberofparameters}" // = 0             body?.call(item:item) }]     } } 

template:

<table>   <thead>     <g:each in="${columns}" var="col">     <th><g:message code="${col.headerlabelcode}"/></th>     </g:each>   </thead>    <tbody>     <g:each in="${items}" var="item">     <tr>       <g:each in="${columns}" var="col">       <td>         <g:set var="_v_b" value="${col.content?.call(item)}"/>         <g:if test="${_v_b}">         ${raw(_v_b)}         </g:if>         <g:else>         ${item."${col.field}"}         </g:else>       </td>       </g:each>     </tr>     </g:each>   </tbody>  </table> 

gsp:

<p:table items="${items}">     <p:cell>         item ${item?.id}     </p:cell>     <p:cell field="actor"/>     <p:cell field="classname"/> </p:table> 

grails version: 2.4.4