UniqueVariableNames.php — WooCommerce 10.9.3

woocommerce / lib / packages / GraphQL / Validator / Rules / UniqueVariableNames.php

woocommerce / lib / packages / GraphQL / Validator / Rules Last commit date

UniqueVariableNames.php

43 lines

1	<?php declare(strict_types=1);
2
3	namespace Automattic\WooCommerce\Vendor\GraphQL\Validator\Rules;
4
5	use Automattic\WooCommerce\Vendor\GraphQL\Error\Error;
6	use Automattic\WooCommerce\Vendor\GraphQL\Language\AST\NameNode;
7	use Automattic\WooCommerce\Vendor\GraphQL\Language\AST\NodeKind;
8	use Automattic\WooCommerce\Vendor\GraphQL\Language\AST\VariableDefinitionNode;
9	use Automattic\WooCommerce\Vendor\GraphQL\Validator\QueryValidationContext;
10
11	class UniqueVariableNames extends ValidationRule
12	{
13	/** @var array<string, NameNode> */
14	protected array $knownVariableNames;
15
16	public function getVisitor(QueryValidationContext $context): array
17	{
18	$this->knownVariableNames = [];
19
20	return [
21	NodeKind::OPERATION_DEFINITION => function (): void {
22	$this->knownVariableNames = [];
23	},
24	NodeKind::VARIABLE_DEFINITION => function (VariableDefinitionNode $node) use ($context): void {
25	$variableName = $node->variable->name->value;
26	if (! isset($this->knownVariableNames[$variableName])) {
27	$this->knownVariableNames[$variableName] = $node->variable->name;
28	} else {
29	$context->reportError(new Error(
30	static::duplicateVariableMessage($variableName),
31	[$this->knownVariableNames[$variableName], $node->variable->name]
32	));
33	}
34	},
35	];
36	}
37
38	public static function duplicateVariableMessage(string $variableName): string
39	{
40	return "There can be only one variable named \"{$variableName}\".";
41	}
42	}
43