/**
* Format arguments to be used for exception message.
*
* @param array $args
*
* @return string
*/
private function formatArgs($args)
{
$context = new Context();
$message = $argsFormatted = [];
$message[] = trim($this->selector->toCSS($context));
if ($args) {
$message[] = '(';
foreach ($args as $a) {
$argValue = '';
if (isset($a['name'])) {
$argValue .= $a['name'] . ':';
}
if ($a['value'] instanceof GenerateCSSInterface) {
$argValue .= $a['value']->toCSS($context);
} else {
$argValue .= '???';
}
$argsFormatted[] = $argValue;
}
$message[] = implode(', ', $argsFormatted);
$message[] = ')';
}
return implode('', $message);
}
/**
* Finds a selector.
*
* @param SelectorNode $selector
* @param RulesetNode $self
* @param Context $context
* @param mixed $filter
*
* @return array
*/
public function find(SelectorNode $selector, Context $context, RulesetNode $self = null, $filter = null)
{
$key = $selector->toCSS($context);
if (!$self) {
$self = $this;
}
if (!array_key_exists($key, $this->lookups)) {
$rules = [];
foreach ($this->rulesets() as $rule) {
if ($rule === $self) {
continue;
}
foreach ($rule->selectors as $ruleSelector) {
/* @var $ruleSelector SelectorNode */
$match = $selector->match($ruleSelector);
if ($match) {
if (count($selector->elements) > $match) {
if (!$filter || call_user_func($filter, $rule)) {
/* @var $rule RulesetNode */
$foundMixins = $rule->find(new SelectorNode(array_slice($selector->elements, $match)), $context, $self, $filter);
for ($i = 0; $i < count($foundMixins); ++$i) {
array_push($foundMixins[$i]['path'], $rule);
}
$rules = array_merge($rules, $foundMixins);
}
} else {
$rules[] = ['rule' => $rule, 'path' => []];
}
break;
}
}
}
$this->lookups[$key] = $rules;
}
return $this->lookups[$key];
}
