<?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:----OTY4NDk0Njc0NzYyMzk4NyA4NDUzMjMwNzQ4NzM4MDQyIDU0ODM0NzQ0ODI0NTgzMTE=