qrcode.chapril.org/vendor/wikimedia/less.php/lib/Less/Tree/Paren.php

<?php
/**
 * @private
 */
class Less_Tree_Paren extends Less_Tree {

	/** @var Less_Tree $value */
	public $value;
	public $type = 'Paren';

	/**
	 * @param Less_Tree $value
	 */
	public function __construct( $value ) {
		$this->value = $value;
	}

	public function accept( $visitor ) {
		$this->value = $visitor->visitObj( $this->value );
	}

	/**
	 * @see Less_Tree::genCSS
	 */
	public function genCSS( $output ) {
		$output->add( '(' );
		$this->value->genCSS( $output );
		$output->add( ')' );
	}

	public function compile( $env ) {
		return new Less_Tree_Paren( $this->value->compile( $env ) );
	}

}