1 files changed, 73 insertions, 0 deletions
diff --git a/vendor/wikimedia/less.php/lib/Less/Tree/Element.php b/vendor/wikimedia/less.php/lib/Less/Tree/Element.php
new file mode 100644
index 0000000..11b9ce4
--- /dev/null
+++ b/vendor/wikimedia/less.php/lib/Less/Tree/Element.php
@@ -0,0 +1,73 @@
+<?php
+/**
+ * @private
+ */
+class Less_Tree_Element extends Less_Tree {
+
+	/** @var string */
+	public $combinator;
+	/** @var bool Whether combinator is null (represented by empty string) or child (single space) */
+	public $combinatorIsEmptyOrWhitespace;
+	/** @var string|Less_Tree */
+	public $value;
+	public $index;
+	public $currentFileInfo;
+	public $type = 'Element';
+
+	public $value_is_object = false;
+
+	/**
+	 * @param null|string $combinator
+	 * @param string|Less_Tree $value
+	 * @param int|null $index
+	 * @param array|null $currentFileInfo
+	 */
+	public function __construct( $combinator, $value, $index = null, $currentFileInfo = null ) {
+		$this->value = $value;
+		$this->value_is_object = is_object( $value );
+
+		// see less-2.5.3.js#Combinator
+		$this->combinator = $combinator ?? '';
+		$this->combinatorIsEmptyOrWhitespace = ( $combinator === null || trim( $combinator ) === '' );
+
+		$this->index = $index;
+		$this->currentFileInfo = $currentFileInfo;
+	}
+
+	public function accept( $visitor ) {
+		if ( $this->value_is_object ) { // object or string
+			$this->value = $visitor->visitObj( $this->value );
+		}
+	}
+
+	public function compile( $env ) {
+		return new Less_Tree_Element(
+			$this->combinator,
+			( $this->value_is_object ? $this->value->compile( $env ) : $this->value ),
+			$this->index,
+			$this->currentFileInfo
+		);
+	}
+
+	/**
+	 * @see Less_Tree::genCSS
+	 */
+	public function genCSS( $output ) {
+		$output->add( $this->toCSS(), $this->currentFileInfo, $this->index );
+	}
+
+	public function toCSS() {
+		if ( $this->value_is_object ) {
+			$value = $this->value->toCSS();
+		} else {
+			$value = $this->value;
+		}
+
+		if ( $value === '' && $this->combinator && $this->combinator === '&' ) {
+			return '';
+		}
+
+		return Less_Environment::$_outputMap[$this->combinator] . $value;
+	}
+
+}