1 files changed, 77 insertions, 0 deletions
diff --git a/lib/less.php/Tree/Extend.php b/lib/less.php/Tree/Extend.php
new file mode 100644
index 0000000..8f21e93
--- /dev/null
+++ b/lib/less.php/Tree/Extend.php
@@ -0,0 +1,77 @@
+<?php
+
+/**
+ * Extend
+ *
+ * @package Less
+ * @subpackage tree
+ */
+class Less_Tree_Extend extends Less_Tree{
+
+	public $selector;
+	public $option;
+	public $index;
+	public $selfSelectors = array();
+	public $allowBefore;
+	public $allowAfter;
+	public $firstExtendOnThisSelectorPath;
+	public $type = 'Extend';
+	public $ruleset;
+
+
+	public $object_id;
+	public $parent_ids = array();
+
+	/**
+	 * @param integer $index
+	 */
+    public function __construct($selector, $option, $index){
+		static $i = 0;
+		$this->selector = $selector;
+		$this->option = $option;
+		$this->index = $index;
+
+		switch($option){
+			case "all":
+				$this->allowBefore = true;
+				$this->allowAfter = true;
+			break;
+			default:
+				$this->allowBefore = false;
+				$this->allowAfter = false;
+			break;
+		}
+
+		$this->object_id = $i++;
+		$this->parent_ids = array($this->object_id);
+	}
+
+    public function accept( $visitor ){
+		$this->selector = $visitor->visitObj( $this->selector );
+	}
+
+    public function compile( $env ){
+		Less_Parser::$has_extends = true;
+		$this->selector = $this->selector->compile($env);
+		return $this;
+		//return new Less_Tree_Extend( $this->selector->compile($env), $this->option, $this->index);
+	}
+
+    public function findSelfSelectors( $selectors ){
+		$selfElements = array();
+
+
+		for( $i = 0, $selectors_len = count($selectors); $i < $selectors_len; $i++ ){
+			$selectorElements = $selectors[$i]->elements;
+			// duplicate the logic in genCSS function inside the selector node.
+			// future TODO - move both logics into the selector joiner visitor
+			if( $i && $selectorElements && $selectorElements[0]->combinator === "") {
+				$selectorElements[0]->combinator = ' ';
+			}
+			$selfElements = array_merge( $selfElements, $selectors[$i]->elements );
+		}
+
+		$this->selfSelectors = array(new Less_Tree_Selector($selfElements));
+	}
+
+}
+\ No newline at end of file