Adding upstream version 0.13.1.upstream/0.13.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 33 insertions, 0 deletions

diff --git a/vendor/wikimedia/less.php/lib/Less/Tree/Negative.php b/vendor/wikimedia/less.php/lib/Less/Tree/Negative.php
new file mode 100644
index 0000000..516f1ee
--- /dev/null
+++ b/vendor/wikimedia/less.php/lib/Less/Tree/Negative.php
@@ -0,0 +1,33 @@
+<?php
+/**
+ * @private
+ */
+class Less_Tree_Negative extends Less_Tree {
+
+	public $value;
+	public $type = 'Negative';
+
+	public function __construct( $node ) {
+		$this->value = $node;
+	}
+
+	// function accept($visitor) {
+	//	$this->value = $visitor->visit($this->value);
+	//}
+
+	/**
+	 * @see Less_Tree::genCSS
+	 */
+	public function genCSS( $output ) {
+		$output->add( '-' );
+		$this->value->genCSS( $output );
+	}
+
+	public function compile( $env ) {
+		if ( Less_Environment::isMathOn() ) {
+			$ret = new Less_Tree_Operation( '*', [ new Less_Tree_Dimension( -1 ), $this->value ] );
+			return $ret->compile( $env );
+		}
+		return new Less_Tree_Negative( $this->value->compile( $env ) );
+	}
+}