<?php

/*
 * Copyright 2012 Johannes M. Schmitt <schmittjoh@gmail.com>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

namespace PhpOption;

use EmptyIterator;

/**
 * @extends Option<mixed>
 */
final class None extends Option
{
    /** @var None|null */
    private static $instance;

    /**
     * @return None
     */
    public static function create(): self
    {
        if (null === self::$instance) {
            self::$instance = new self();
        }

        return self::$instance;
    }

    public function get()
    {
        throw new \RuntimeException('None has no value.');
    }

    public function getOrCall($callable)
    {
        return $callable();
    }

    public function getOrElse($default)
    {
        return $default;
    }

    public function getOrThrow(\Exception $ex)
    {
        throw $ex;
    }

    public function isEmpty(): bool
    {
        return true;
    }

    public function isDefined(): bool
    {
        return false;
    }

    public function orElse(Option $else)
    {
        return $else;
    }

    public function ifDefined($callable)
    {
        // Just do nothing in that case.
    }

    public function forAll($callable)
    {
        return $this;
    }

    public function map($callable)
    {
        return $this;
    }

    public function flatMap($callable)
    {
        return $this;
    }

    public function filter($callable)
    {
        return $this;
    }

    public function filterNot($callable)
    {
        return $this;
    }

    public function select($value)
    {
        return $this;
    }

    public function reject($value)
    {
        return $this;
    }

    public function getIterator(): EmptyIterator
    {
        return new EmptyIterator();
    }

    public function foldLeft($initialValue, $callable)
    {
        return $initialValue;
    }

    public function foldRight($initialValue, $callable)
    {
        return $initialValue;
    }

    private function __construct()
    {
    }
}

• [F] LazyOption.php
  Delete
• [F] None.php
  Delete
• [F] Option.php
  Delete
• [F] Some.php
  Delete

CUSTOMER COMPLAINT FORM

Please use this form to give us suggestions, compliments or complaints.
Click here to check complaint status.
Click here to show Term of Business Agreement

• Config option 1
• Config option 2

Salutation *

-- Please Choose -- Mr. Mrs. Ms. PT. CV. UD.

Name *

E-mail *

Account Type *

-- Please Choose -- Individual Company

Company Name *

Reference Number of Type Document *

-- Please Choose -- Policy Contract Invoice Number

*

About *

-- Please Choose -- Claim Service System

Risk *

-- Please Choose --

Subject *

Details *

Attachment

Add Attachment

Notes: *.png, *.jpg, *.jpeg, *.pdf, *.doc, *.docx, *.xls, *.xlsx, *.ppt, *.pptx, *.eml are allowed, and size must be smaller than 5Mb.

   Disclaimer :

• The information filled in form is true and valid. PT Howden Insurance Brokers Indonesia is not liable to any lawful obligations arising from any false or invalid information in this application form whatsoever, all the false or invalid information will not be processed.
• The client hereby agree to render PT Howden Insurance Brokers Indonesia a right to handle complaint including but not limited to grab data from records, emails, documents, confidential data, and others, liaise with relatable Parties e.g. (Insurer, Adjuster, Legal Advisor, etc) to settled complaint.
• The client hereby released PT Howden Insurance Brokers Indonesia from any material or immaterial damages if eventually, there is no evidence of damages caused by PT Howden Insurance Brokers Indonesia.

* is required

Clear Submit

Copyright © 2026 PT. Howden Insurance Brokers Indonesia. All rights reserved.
Authorised and regulated by Otoritas Jasa Keuangan (OJK).
Member of The Association of Indonesian Insurance & Reinsurance Brokers (APPARINDO).