%PDF-
%PDF-
Mini Shell
Mini Shell
<?php
/**
* SCSSPHP
*
* @copyright 2012-2020 Leaf Corcoran
*
* @license http://opensource.org/licenses/MIT MIT
*
* @link http://scssphp.github.io/scssphp
*/
namespace ScssPhp\ScssPhp\Util;
/**
* @internal
*/
final class EquatableUtil
{
/**
* @param list<mixed> $list
*/
public static function listContains(array $list, Equatable $item): bool
{
foreach ($list as $listItem) {
if (!\is_object($listItem)) {
continue;
}
if ($item === $listItem) {
return true;
}
if ($item->equals($listItem)) {
return true;
}
}
return false;
}
/**
* Checks whether 2 values are equals, using the Equatable semantic to compare objects if possible.
*
* When compared values don't implement {@see Equatable}, they are compared
* using `===`.
* Values implementing {@see Equatable} are still compared with `===` first to
* optimize comparisons to the same object, as an object is always expected to
* be equal to itself.
*
* @param mixed $item1
* @param mixed $item2
*
* @return bool
*/
public static function equals($item1, $item2): bool
{
if ($item1 === $item2) {
return true;
}
if ($item1 instanceof Equatable && $item2 instanceof Equatable) {
return $item1->equals($item2);
}
return false;
}
/**
* Checks whether 2 lists are equals, using the Equatable semantic to compare objects if possible.
*
* @param list<mixed> $list1
* @param list<mixed> $list2
*/
public static function listEquals(array $list1, array $list2): bool
{
if (\count($list1) !== \count($list2)) {
return false;
}
foreach ($list1 as $i => $item1) {
$item2 = $list2[$i];
if (self::equals($item1, $item2)) {
continue;
}
return false;
}
return true;
}
}
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