<?php

/**
 * This file is part of the Nette Framework (https://nette.org)
 * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
 */

declare(strict_types=1);

namespace Nette\Utils;

use Nette;


/**
 * Provides the base class for a generic list (items can be accessed by index).
 * @template T
 * @implements \IteratorAggregate<int, T>
 * @implements \ArrayAccess<int, T>
 */
class ArrayList implements \ArrayAccess, \Countable, \IteratorAggregate
{
	use Nette\SmartObject;

	private array $list = [];


	/**
	 * Transforms array to ArrayList.
	 * @param  list<T>  $array
	 */
	public static function from(array $array): static
	{
		if (!Arrays::isList($array)) {
			throw new Nette\InvalidArgumentException('Array is not valid list.');
		}

		$obj = new static;
		$obj->list = $array;
		return $obj;
	}


	/**
	 * Returns an iterator over all items.
	 * @return \Iterator<int, T>
	 */
	public function &getIterator(): \Iterator
	{
		foreach ($this->list as &$item) {
			yield $item;
		}
	}


	/**
	 * Returns items count.
	 */
	public function count(): int
	{
		return count($this->list);
	}


	/**
	 * Replaces or appends a item.
	 * @param  int|null  $index
	 * @param  T  $value
	 * @throws Nette\OutOfRangeException
	 */
	public function offsetSet($index, $value): void
	{
		if ($index === null) {
			$this->list[] = $value;

		} elseif (!is_int($index) || $index < 0 || $index >= count($this->list)) {
			throw new Nette\OutOfRangeException('Offset invalid or out of range');

		} else {
			$this->list[$index] = $value;
		}
	}


	/**
	 * Returns a item.
	 * @param  int  $index
	 * @return T
	 * @throws Nette\OutOfRangeException
	 */
	public function offsetGet($index): mixed
	{
		if (!is_int($index) || $index < 0 || $index >= count($this->list)) {
			throw new Nette\OutOfRangeException('Offset invalid or out of range');
		}

		return $this->list[$index];
	}


	/**
	 * Determines whether a item exists.
	 * @param  int  $index
	 */
	public function offsetExists($index): bool
	{
		return is_int($index) && $index >= 0 && $index < count($this->list);
	}


	/**
	 * Removes the element at the specified position in this list.
	 * @param  int  $index
	 * @throws Nette\OutOfRangeException
	 */
	public function offsetUnset($index): void
	{
		if (!is_int($index) || $index < 0 || $index >= count($this->list)) {
			throw new Nette\OutOfRangeException('Offset invalid or out of range');
		}

		array_splice($this->list, $index, 1);
	}


	/**
	 * Prepends a item.
	 * @param  T  $value
	 */
	public function prepend(mixed $value): void
	{
		$first = array_slice($this->list, 0, 1);
		$this->offsetSet(0, $value);
		array_splice($this->list, 1, 0, $first);
	}
}

• [F] ArrayHash.php
  Delete
• [F] ArrayList.php
  Delete
• [F] Arrays.php
  Delete
• [F] Callback.php
  Delete
• [F] DateTime.php
  Delete
• [F] exceptions.php
  Delete
• [F] FileInfo.php
  Delete
• [F] FileSystem.php
  Delete
• [F] Finder.php
  Delete
• [F] Floats.php
  Delete
• [F] Helpers.php
  Delete
• [F] Html.php
  Delete
• [F] Image.php
  Delete
• [F] ImageColor.php
  Delete
• [F] ImageType.php
  Delete
• [F] Iterables.php
  Delete
• [F] Json.php
  Delete
• [F] ObjectHelpers.php
  Delete
• [F] Paginator.php
  Delete
• [F] Random.php
  Delete
• [F] Reflection.php
  Delete
• [F] ReflectionMethod.php
  Delete
• [F] Strings.php
  Delete
• [F] Type.php
  Delete
• [F] Validators.php
  Delete

Blog Section

Discover the Latest in Digital Payments and NFC Technology

Dive into our blog to explore the cutting-edge trends in digital payments and NFC technology. Stay updated on the innovations that are revolutionizing transactions, boosting security, and making payments quicker and more convenient. Learn how these advancements are shaping the future of financial interactions and driving the global transition towards a cashless world.

The Rise of Contactless Payments:...

In recent years, contactless payments have surged in popularity, driven...

Visit Blog

March 27, 2024

Enhancing Payment Security: The Role...

As digital transactions proliferate, ensuring robust payment security is more critical than ever. Two foundational...

Visit Blog

March 27, 2024

The Future of Digital Wallets:...

Digital wallets have fundamentally transformed how we manage money, offering a streamlined, secure, and highly...

Visit Blog

March 27, 2024