<?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:----ODAwMzYyOTg3ODQxNTY4OCA0NTA3NDE5OTQzMjE4MjcxIDkyNjc0NjcyMjU3NzI0MjI=