228         $selectors = $this->compileSelectors($block->tags);
229         $env->selectors = $this->multiplySelectors($selectors);
230         $out = $this->makeOutputBlock(null, $env->selectors);
275     protected function compileNestedBlock($block, $selectors) {  argument
277         $this->scope = $this->makeOutputBlock($block->type, $selectors);
443         $selectors = null;
445             if (isset($env->selectors)) {
446                 $selectors = $env->selectors;
452         return $selectors;
457     protected function multiplySelectors($selectors) {  argument
463             foreach ($selectors as &$s) {
467             return $selectors;
472             foreach ($selectors as $child) {
488     protected function compileSelectors($selectors) {  argument
491         foreach ($selectors as $s) {
1969     protected function makeOutputBlock($type, $selectors = null) {  argument
1973         $b->selectors = $selectors;
3822     protected function pushBlock($selectors=null, $type=null) {  argument
3830         $b->tags = $selectors;
3972         if (!empty($block->selectors)) {
3982                 implode($selectorSeparator, $block->selectors);
4005         if (!empty($block->selectors)) {