<?php declare(strict_types=1);
/*
 * This file is part of sebastian/type.
 *
 * (c) Sebastian Bergmann <sebastian@phpunit.de>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace SebastianBergmann\Type;

use function count;
use function implode;
use function sort;

final class UnionType extends Type
{
    /**
     * @psalm-var non-empty-list<Type>
     */
    private $types;

    /**
     * @throws RuntimeException
     */
    public function __construct(Type ...$types)
    {
        $this->ensureMinimumOfTwoTypes(...$types);
        $this->ensureOnlyValidTypes(...$types);

        $this->types = $types;
    }

    public function isAssignable(Type $other): bool
    {
        foreach ($this->types as $type) {
            if ($type->isAssignable($other)) {
                return true;
            }
        }

        return false;
    }

    public function asString(): string
    {
        return $this->name();
    }

    public function name(): string
    {
        $types = [];

        foreach ($this->types as $type) {
            if ($type->isIntersection()) {
                $types[] = '(' . $type->name() . ')';

                continue;
            }

            $types[] = $type->name();
        }

        sort($types);

        return implode('|', $types);
    }

    public function allowsNull(): bool
    {
        foreach ($this->types as $type) {
            if ($type instanceof NullType) {
                return true;
            }
        }

        return false;
    }

    /**
     * @psalm-assert-if-true UnionType $this
     */
    public function isUnion(): bool
    {
        return true;
    }

    public function containsIntersectionTypes(): bool
    {
        foreach ($this->types as $type) {
            if ($type->isIntersection()) {
                return true;
            }
        }

        return false;
    }

    /**
     * @psalm-return non-empty-list<Type>
     */
    public function types(): array
    {
        return $this->types;
    }

    /**
     * @throws RuntimeException
     */
    private function ensureMinimumOfTwoTypes(Type ...$types): void
    {
        if (count($types) < 2) {
            throw new RuntimeException(
                'A union type must be composed of at least two types'
            );
        }
    }

    /**
     * @throws RuntimeException
     */
    private function ensureOnlyValidTypes(Type ...$types): void
    {
        foreach ($types as $type) {
            if ($type instanceof UnknownType) {
                throw new RuntimeException(
                    'A union type must not be composed of an unknown type'
                );
            }

            if ($type instanceof VoidType) {
                throw new RuntimeException(
                    'A union type must not be composed of a void type'
                );
            }
        }
    }
}

• [F] CallableType.php
  Delete
• [F] FalseType.php
  Delete
• [F] GenericObjectType.php
  Delete
• [F] IntersectionType.php
  Delete
• [F] IterableType.php
  Delete
• [F] MixedType.php
  Delete
• [F] NeverType.php
  Delete
• [F] NullType.php
  Delete
• [F] ObjectType.php
  Delete
• [F] SimpleType.php
  Delete
• [F] StaticType.php
  Delete
• [F] TrueType.php
  Delete
• [F] Type.php
  Delete
• [F] UnionType.php
  Delete
• [F] UnknownType.php
  Delete
• [F] VoidType.php
  Delete

Save Cards

Save Your Card for Quick and Easy Future Payments Online

Simplify your payment experience by securely saving your card on our platform. After your initial transaction, you can choose to store your card details safely for future use. This feature eliminates the need to re-enter your payment information each time, making checkouts faster while keeping your data secure with advanced encryption and robust security measures.

• Navigate to the “Save Card” section.
• Click on “Add Card.”
• Choose your preferred setup method.
• Your card is now saved for future payments.