Add LambdaHelper->getContext()

[levu42]

I'd like to add a helper function($arg, $lambda) {…} that is able to load dynamically a subtemplate from the argument. So I'd like to accomplish {{> {{variable}} }} by doing {{#loadPartial}}{{variable}}{{/loadPartial}} but I'm sticking with this solution until now:

function mustacheLambdaHelperGetContext($lambda) {
  $f = function(Mustache_LambdaHelper $lambda) {
    return $lambda->context;  
  };
  $f = Closure::bind($f, null, $lambda);
  return $f($lambda);
}
/** … the same with ->mustache instead of ->context **/

$engine->addHelper('loadPartial', function($args, $lambda) {
  $partialName = $lambda->render($args);
  $context = mustacheLambdaHelperGetContext($lambda);
  $engine = mustacheLambdaHelperGetMustache($lambda);
  if ($partial = $engine->loadPartial($partialName)) {
    return $partial->renderInternal($context);
  }
});

And this solution is very ugly. So at least, if not implementing a LambdaHelper->renderPartial($name) or something, please implement a getContext() and a getMustache() method or make $context and $mustache protected instead of private.