<?php

namespace rednaoeasycalculationforms\Parser\Elements;

use rednaoeasycalculationforms\Parser\Core\ParseBase;
use rednaoeasycalculationforms\Parser\Core\ParseFactory;

class ParseUnaryExpression extends ParseBase
{
    private $Subtype;
    /** @var ParseBase */
    private $Expression;

    public function __construct($options, $parent)
    {
        parent::__construct($options, $parent);
        $this->Subtype = $options->St;
        $this->Expression = ParseFactory::GetParseElement($options->d, $this);
    }

    public function Parse($type = null)
    {
        if($this->Subtype == "-")
            return $this->Expression->Parse() * -1;
        return !$this->Expression->Parse();
    }
}