Haanga_Compiler_Parser::yy_pop_parser_stack PHP Method

    function yy_pop_parser_stack()
    {
        if (!count($this->yystack)) {
            return;
        }
        $yytos = array_pop($this->yystack);
        if (self::$yyTraceFILE && $this->yyidx >= 0) {
            fwrite(self::$yyTraceFILE, self::$yyTracePrompt . 'Popping ' . self::$yyTokenName[$yytos->major] . "\n");
        }
        $yymajor = $yytos->major;
        self::yy_destructor($yymajor, $yytos->minor);
        $this->yyidx--;
        return $yymajor;
    }