ArrayKey.php
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ArrayKey.php
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	<?php

	declare(strict_types=1);

	/**
	* This file is part of phpDocumentor.
	*
	* For the full copyright and license information, please view the LICENSE
	* file that was distributed with this source code.
	*
	* @link http://phpdoc.org
	*/

	namespace phpDocumentor\Reflection\Types;

	use phpDocumentor\Reflection\PseudoType;
	use phpDocumentor\Reflection\Type;

	/**
	* Value Object representing a array-key Type.
	*
	* A array-key Type is the supertype (but not a union) of int and string.
	*
	* @psalm-immutable
	*/
	final class ArrayKey extends AggregatedType implements PseudoType
	{
	public function __construct()
	{
	parent::__construct([new String_(), new Integer()], '\|');
	}

	public function underlyingType(): Type
	{
	return new Compound([new String_(), new Integer()]);
	}

	public function __toString(): string
	{
	return 'array-key';
	}
	}