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| TraitArrayAccess | |
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| 1 | <?php |
| 2 | |
| 3 | // ╔════════════════════════════════════════════════════════════╗ |
| 4 | // ║ MIT Licence (#Expat) - https://opensource.org/licenses/MIT ║ |
| 5 | // ║ Copyright 2026 Frederic Poeydomenge <dyno@phexium.com> ║ |
| 6 | // ╚════════════════════════════════════════════════════════════╝ |
| 7 | |
| 8 | declare(strict_types=1); |
| 9 | |
| 10 | namespace Phexium\Domain\Collection\Trait; |
| 11 | |
| 12 | use InvalidArgumentException; |
| 13 | |
| 14 | trait TraitArrayAccess |
| 15 | { |
| 16 | public function offsetExists(mixed $offset): bool |
| 17 | { |
| 18 | return (is_int($offset) || is_string($offset)) && array_key_exists($offset, $this->collection); |
| 19 | } |
| 20 | |
| 21 | public function offsetGet(mixed $offset): mixed |
| 22 | { |
| 23 | return $this->collection[self::validOffset($offset)] ?? null; |
| 24 | } |
| 25 | |
| 26 | public function offsetSet(mixed $offset, mixed $value): void |
| 27 | { |
| 28 | if ($offset === null) { |
| 29 | $this->collection[] = $value; |
| 30 | |
| 31 | return; |
| 32 | } |
| 33 | |
| 34 | $this->collection[self::validOffset($offset)] = $value; |
| 35 | } |
| 36 | |
| 37 | public function offsetUnset(mixed $offset): void |
| 38 | { |
| 39 | unset($this->collection[self::validOffset($offset)]); |
| 40 | } |
| 41 | |
| 42 | private static function validOffset(mixed $offset): int|string |
| 43 | { |
| 44 | if (!is_int($offset) && !is_string($offset)) { |
| 45 | throw new InvalidArgumentException('Collection offset must be an int or a string.'); |
| 46 | } |
| 47 | |
| 48 | return $offset; |
| 49 | } |
| 50 | } |