<?php namespace Sabberworm\CSS\Value; use Sabberworm\CSS\Renderable; abstract class Value implements Renderable { protected $iLineNo; public function __construct($iLineNo = 0) { $this->iLineNo = $iLineNo; } /** * @return int */ public function getLineNo() { return $this->iLineNo; } //Methods are commented out because re-declaring them here is a fatal error in PHP < 5.3.9 //public abstract function __toString(); //public abstract function render(\Sabberworm\CSS\OutputFormat $oOutputFormat); }