/**
* Wraps one ViewHelper argument evaluation in a closure that can be
* rendered by passing a rendering context.
*
* @param ViewHelperNode $node
* @param string $argumentName
* @return string
*/
public function wrapViewHelperNodeArgumentEvaluationInClosure(ViewHelperNode $node, $argumentName)
{
$arguments = $node->getArguments();
$argument = $arguments[$argumentName];
$closure = 'function() use ($renderingContext, $self) {' . chr(10);
if ($node->getArgumentDefinition($argumentName)->getType() === 'boolean') {
// We treat boolean nodes by compiling a closure to evaluate the stack of the boolean argument
$compiledIfArgumentStack = $this->nodeConverter->convert(new ArrayNode($argument->getStack()));
$closure .= $compiledIfArgumentStack['initialization'] . chr(10);
$closure .= sprintf('return \\NamelessCoder\\Fluid\\Core\\Parser\\SyntaxTree\\BooleanNode::evaluateStack($renderingContext, %s);', $compiledIfArgumentStack['execution']) . chr(10);
} else {
$closure .= sprintf('$argument = unserialize(\'%s\'); return $argument->evaluate($renderingContext);', serialize($argument)) . chr(10);
}
$closure .= '}';
return $closure;
}
