| 1: | <?php |
| 2: | |
| 3: | declare(strict_types=1); |
| 4: | |
| 5: | /** |
| 6: | * This file is part of the Nexus MCP SDK package. |
| 7: | * |
| 8: | * (c) 2026 John Paul E. Balandan, CPA <paulbalandan@gmail.com> |
| 9: | * |
| 10: | * For the full copyright and license information, please view |
| 11: | * the LICENSE file that was distributed with this source code. |
| 12: | */ |
| 13: | |
| 14: | namespace Nexus\Mcp\Core\Schema; |
| 15: | |
| 16: | /** |
| 17: | * The `_meta` extension slot carried by notifications and results. |
| 18: | * |
| 19: | * @implements Arrayable<array<string, mixed>> |
| 20: | * |
| 21: | * @see https://modelcontextprotocol.io/specification/2025-11-25/basic#_meta |
| 22: | */ |
| 23: | final readonly class MetaObject implements Arrayable |
| 24: | { |
| 25: | /** |
| 26: | * @param array<string, mixed> $extras |
| 27: | */ |
| 28: | public function __construct(public array $extras = []) |
| 29: | { |
| 30: | } |
| 31: | |
| 32: | #[\Override] |
| 33: | public static function fromArray(array $data): static |
| 34: | { |
| 35: | return new self($data); |
| 36: | } |
| 37: | |
| 38: | #[\Override] |
| 39: | public function toArray(): array |
| 40: | { |
| 41: | return $this->extras; |
| 42: | } |
| 43: | |
| 44: | #[\Override] |
| 45: | public function jsonSerialize(): array|\stdClass |
| 46: | { |
| 47: | return [] === $this->extras ? new \stdClass() : $this->extras; |
| 48: | } |
| 49: | } |
| 50: |