<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\ExpressionLanguage\Node;

use Symfony\Component\ExpressionLanguage\Compiler;

/**
 * @author Fabien Potencier <fabien@symfony.com>
 *
 * @internal
 */
class UnaryNode extends Node
{
    private static $operators = array(
        '!' => '!',
        'not' => '!',
        '+' => '+',
        '-' => '-',
    );

    public function __construct($operator, Node $node)
    {
        parent::__construct(
            array('node' => $node),
            array('operator' => $operator)
        );
    }

    public function compile(Compiler $compiler)
    {
        $compiler
            ->raw('(')
            ->raw(self::$operators[$this->attributes['operator']])
            ->compile($this->nodes['node'])
            ->raw(')')
        ;
    }

    public function evaluate($functions, $values)
    {
        $value = $this->nodes['node']->evaluate($functions, $values);
        switch ($this->attributes['operator']) {
            case 'not':
            case '!':
                return !$value;
            case '-':
                return -$value;
        }

        return $value;
    }

    public function toArray()
    {
        return array('(', $this->attributes['operator'].' ', $this->nodes['node'], ')');
    }
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----NjQ0Mjc0MTkwODY2MDg5NyAzNjk0NzA4OTk0OTUyMTU5IDU5ODkyMjgwNjc5NTkwMjQ=