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<?php |
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namespace Digia\GraphQL\Validation\Rule; |
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use Digia\GraphQL\Error\ValidationException; |
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use Digia\GraphQL\Language\Node\DocumentNode; |
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use Digia\GraphQL\Language\Node\FragmentDefinitionNode; |
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use Digia\GraphQL\Language\Node\NodeInterface; |
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use Digia\GraphQL\Language\Node\OperationDefinitionNode; |
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use function Digia\GraphQL\Validation\unusedFragmentMessage; |
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/** |
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* No unused fragments |
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* |
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* A GraphQL document is only valid if all fragment definitions are spread |
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* within operations, or spread within other fragments spread within operations. |
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*/ |
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class NoUnusedFragmentsRule extends AbstractRule |
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{ |
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/** |
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* @var OperationDefinitionNode[] |
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*/ |
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protected $operationDefinitions = []; |
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/** |
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* @var FragmentDefinitionNode[] |
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*/ |
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protected $fragmentDefinitions = []; |
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/** |
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* @inheritdoc |
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*/ |
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public function enterNode(NodeInterface $node): ?NodeInterface |
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{ |
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if ($node instanceof OperationDefinitionNode) { |
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$this->operationDefinitions[] = $node; |
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return null; |
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} |
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if ($node instanceof FragmentDefinitionNode) { |
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$this->fragmentDefinitions[] = $node; |
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return null; |
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} |
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return $node; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function leaveNode(NodeInterface $node): ?NodeInterface |
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{ |
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if ($node instanceof DocumentNode) { |
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$fragmentNamesUsed = []; |
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foreach ($this->operationDefinitions as $operationDefinition) { |
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foreach ($this->validationContext->getRecursivelyReferencedFragments($operationDefinition) as $fragmentDefinition) { |
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$fragmentNamesUsed[$fragmentDefinition->getNameValue()] = true; |
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} |
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} |
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foreach ($this->fragmentDefinitions as $fragmentDefinition) { |
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$fragmentName = $fragmentDefinition->getNameValue(); |
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if (!isset($fragmentNamesUsed[$fragmentName])) { |
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$this->validationContext->reportError( |
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new ValidationException(unusedFragmentMessage($fragmentName), [$fragmentDefinition]) |
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); |
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} |
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} |
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} |
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return $node; |
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} |
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} |
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digiaonline /
graphql-php
