1 files changed, 90 insertions, 0 deletions
diff --git a/vendor/wikimedia/less.php/lib/Less/Tree/Expression.php b/vendor/wikimedia/less.php/lib/Less/Tree/Expression.php
new file mode 100644
index 0000000..8324141
--- /dev/null
+++ b/vendor/wikimedia/less.php/lib/Less/Tree/Expression.php
@@ -0,0 +1,90 @@
+<?php
+/**
+ * @private
+ */
+class Less_Tree_Expression extends Less_Tree {
+	/** @var array */
+	public $value = [];
+	public $parens = false;
+	public $type = 'Expression';
+
+	public function __construct( $value, $parens = null ) {
+		$this->value = $value;
+		$this->parens = $parens;
+	}
+
+	public function accept( $visitor ) {
+		$this->value = $visitor->visitArray( $this->value );
+	}
+
+	public function compile( $env ) {
+		$doubleParen = false;
+
+		if ( $this->parens && !$this->parensInOp ) {
+			Less_Environment::$parensStack++;
+		}
+
+		$returnValue = null;
+		if ( $this->value ) {
+
+			$count = count( $this->value );
+
+			if ( $count > 1 ) {
+
+				$ret = [];
+				foreach ( $this->value as $e ) {
+					$ret[] = $e->compile( $env );
+				}
+				$returnValue = new Less_Tree_Expression( $ret );
+
+			} else {
+
+				if ( ( $this->value[0] instanceof Less_Tree_Expression ) && $this->value[0]->parens && !$this->value[0]->parensInOp ) {
+					$doubleParen = true;
+				}
+
+				$returnValue = $this->value[0]->compile( $env );
+			}
+
+		} else {
+			$returnValue = $this;
+		}
+
+		if ( $this->parens ) {
+			if ( !$this->parensInOp ) {
+				Less_Environment::$parensStack--;
+
+			} elseif ( !Less_Environment::isMathOn() && !$doubleParen ) {
+				$returnValue = new Less_Tree_Paren( $returnValue );
+
+			}
+		}
+		return $returnValue;
+	}
+
+	/**
+	 * @see Less_Tree::genCSS
+	 */
+	public function genCSS( $output ) {
+		$val_len = count( $this->value );
+		for ( $i = 0; $i < $val_len; $i++ ) {
+			$this->value[$i]->genCSS( $output );
+			if ( $i + 1 < $val_len ) {
+				$output->add( ' ' );
+			}
+		}
+	}
+
+	public function throwAwayComments() {
+		if ( is_array( $this->value ) ) {
+			$new_value = [];
+			foreach ( $this->value as $v ) {
+				if ( $v instanceof Less_Tree_Comment ) {
+					continue;
+				}
+				$new_value[] = $v;
+			}
+			$this->value = $new_value;
+		}
+	}
+}