public function mustCompile()
{
if (!$this->source->exists) {
if ($this->parent instanceof Template) {
$parent_resource = " in '{$this->parent}->template_resource}'";
} else {
$parent_resource = '';
}
throw new SmartyException("Unable to load template {$this->source->type} '{$this->source->name}'{$parent_resource}");
}
return $this->smarty->force_compile || $this->source->recompiled || $this->compiled->timestamp === false || $this->smarty->compile_check && $this->compiled->timestamp < $this->source->timestamp;
}