File Core/Schema/Error/UnknownProtocolError.php

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\Error;
15:
16:	use Nexus\Assert\Assert;
17:	use Nexus\Assert\ExpectationFailedException;
18:	use Nexus\Mcp\Core\Schema\Enum\ProtocolErrorCode;
19:	use Nexus\Mcp\Core\Schema\Error;
20:
21:	/**
22:	* Error carrying a raw integer code that does not map to a known `ProtocolErrorCode` case.
23:	*
24:	* @extends Error<array{code: int, message: non-empty-string, data?: mixed}>
25:	*
26:	* @see https://www.jsonrpc.org/specification#error_object
27:	*/
28:	final readonly class UnknownProtocolError extends Error
29:	{
30:	public function __construct(int $code, string $message, mixed $data = null)
31:	{
32:	if (ProtocolErrorCode::tryFrom($code) !== null) {
33:	throw new ExpectationFailedException(
34:	'code {value} maps to a known protocol error code.',
35:	['value' => var_export($code, true)],
36:	);
37:	}
38:
39:	parent::__construct(code: $code, message: $message, data: $data);
40:	}
41:
42:	#[\Override]
43:	public static function fromArray(array $data): static
44:	{
45:	Assert::that($data)->hasOffset('code', '"error" is missing the required "code" key.');
46:	Assert::that($data['code'])->isInt('"error.code" must be an integer, {type} given.');
47:
48:	Assert::that($data)->hasOffset('message', '"error" is missing the required "message" key.');
49:	Assert::that($data['message'])->isString('"error.message" must be a string, {type} given.');
50:
51:	return new self(code: $data['code'], message: $data['message'], data: $data['data'] ?? null);
52:	}
53:
54:	#[\Override]
55:	public function toArray(): array
56:	{
57:	$result = [
58:	'code' => $this->code,
59:	'message' => $this->message,
60:	];
61:
62:	$data = $this->data ?? [];
63:
64:	if ([] !== $data) {
65:	$result['data'] = $data;
66:	}
67:
68:	return $result;
69:	}
70:	}
71:

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