/**
* @param array $options
* @param CacheInterface $cache
*
* @return Parser
*/
protected function createParser($options = [], CacheInterface $cache = null)
{
$parser = new Parser($options, $cache);
// test functions
$parser->addFunctions(['_color' => function (FunctionRegistry $registry, Node $a) {
if ($a->value === 'evil red') {
return new ColorNode('600');
}
}, 'increment' => function (FunctionRegistry $registry, Node $a) {
return new DimensionNode($a->value + 1);
}, 'add' => function (FunctionRegistry $registry, Node $a, Node $b) {
return new DimensionNode($a->value + $b->value);
}]);
return $parser;
}