protected function _compileCacheClassCode()
    {
        // Instantiate a minification provider (if enabled)
        if (SQUEEZR_CSS_MINIFY) {
            $this->_minifier = new Minify();
        }

        // Parse the CSS file and extract breakpoint and CSS block info
        $this->_parse();

        // Compile a corresponding PHP cache class
        $cacheClassCode = strtr(file_get_contents(__DIR__.DIRECTORY_SEPARATOR.'Css'.DIRECTORY_SEPARATOR.'Cache.php'),
            array(
                'FILEHASH' => md5($this->_relativeCssPath),
                "'BREAKPOINTS'" => var_export($this->_breakpointIndex, true),
                "'BLOCKS'" => var_export($this->_blocks, true),
            ));

        // Return the PHP cache class code
        return $cacheClassCode;
    }