JezK
Edit File: UniqueFragmentNames.php
<?php declare(strict_types=1); namespace Automattic\WooCommerce\Vendor\GraphQL\Validator\Rules; use Automattic\WooCommerce\Vendor\GraphQL\Error\Error; use Automattic\WooCommerce\Vendor\GraphQL\Language\AST\FragmentDefinitionNode; use Automattic\WooCommerce\Vendor\GraphQL\Language\AST\NameNode; use Automattic\WooCommerce\Vendor\GraphQL\Language\AST\NodeKind; use Automattic\WooCommerce\Vendor\GraphQL\Language\Visitor; use Automattic\WooCommerce\Vendor\GraphQL\Language\VisitorOperation; use Automattic\WooCommerce\Vendor\GraphQL\Validator\QueryValidationContext; class UniqueFragmentNames extends ValidationRule { /** @var array<string, NameNode> */ protected array $knownFragmentNames; public function getVisitor(QueryValidationContext $context): array { $this->knownFragmentNames = []; return [ NodeKind::OPERATION_DEFINITION => static fn (): VisitorOperation => Visitor::skipNode(), NodeKind::FRAGMENT_DEFINITION => function (FragmentDefinitionNode $node) use ($context): VisitorOperation { $fragmentName = $node->name->value; if (! isset($this->knownFragmentNames[$fragmentName])) { $this->knownFragmentNames[$fragmentName] = $node->name; } else { $context->reportError(new Error( static::duplicateFragmentNameMessage($fragmentName), [$this->knownFragmentNames[$fragmentName], $node->name] )); } return Visitor::skipNode(); }, ]; } public static function duplicateFragmentNameMessage(string $fragName): string { return "There can be only one fragment named \"{$fragName}\"."; } }