<?php

/**
* DoctrineExtensions Mysql Function Pack
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to kontakt@beberlei.de so I can send you a copy immediately.
*/

namespace Keosu\CoreBundle\DQL\Mysql;

use Doctrine\ORM\Query\AST\Functions\FunctionNode,
    Doctrine\ORM\Query\Lexer;

class Sin extends FunctionNode
{

    public $arithmeticExpression;

    public function getSql(\Doctrine\ORM\Query\SqlWalker $sqlWalker)
    {

        return 'SIN(' . $sqlWalker->walkSimpleArithmeticExpression(
                $this->arithmeticExpression
        ) . ')';
    }

    public function parse(\Doctrine\ORM\Query\Parser $parser)
    {
        $parser->match(Lexer::T_IDENTIFIER);
        $parser->match(Lexer::T_OPEN_PARENTHESIS);

        $this->arithmeticExpression = $parser->SimpleArithmeticExpression();

        $parser->match(Lexer::T_CLOSE_PARENTHESIS);
    }

}
