49     protected function isEmpty($block)  argument
51         if (empty($block->lines)) {
52             foreach ($block->children as $child) {
61     public function block($block)  function in LesserPHP\\FormatterClassic
63         if ($this->isEmpty($block)) return;
68             is_null($block->type) && count($block->lines) == 1;
70         if (!empty($block->selectors)) {
80                 implode($selectorSeparator, $block->selectors);
90         if (!empty($block->lines)) {
92             echo $inner . implode($glue, $block->lines);
93             if (!$isSingle && !empty($block->children)) {
98         foreach ($block->children as $child) {
99             $this->block($child);
102         if (!empty($block->selectors)) {
103             if (!$isSingle && empty($block->children)) echo $this->break;