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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\AST\Node\FragmentDefinitionNode; |
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use Digia\GraphQL\Language\AST\Node\InlineFragmentNode; |
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use Digia\GraphQL\Language\AST\Node\NodeInterface; |
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use Digia\GraphQL\Type\Definition\CompositeTypeInterface; |
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use function Digia\GraphQL\Util\typeFromAST; |
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use function Digia\GraphQL\Validation\fragmentOnNonCompositeMessage; |
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use function Digia\GraphQL\Validation\inlineFragmentOnNonCompositeMessage; |
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/** |
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* Fragments on composite type |
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* |
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* Fragments use a type condition to determine if they apply, since fragments |
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* can only be spread into a composite type (object, interface, or union), the |
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* type condition must also be a composite type. |
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*/ |
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class FragmentsOnCompositeTypesRule extends AbstractRule |
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{ |
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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 InlineFragmentNode) { |
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$this->validateFragementNode($node, function (NodeInterface $node) { |
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/** @noinspection PhpUndefinedMethodInspection */ |
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return inlineFragmentOnNonCompositeMessage((string)$node->getTypeCondition()); |
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}); |
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} |
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if ($node instanceof FragmentDefinitionNode) { |
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$this->validateFragementNode($node, function (NodeInterface $node) { |
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/** @noinspection PhpUndefinedMethodInspection */ |
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return fragmentOnNonCompositeMessage((string)$node, (string)$node->getTypeCondition()); |
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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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* @param NodeInterface|InlineFragmentNode|FragmentDefinitionNode $node |
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* @param callable $errorMessageFunction |
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* @throws \Exception |
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* @throws \TypeError |
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*/ |
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protected function validateFragementNode(NodeInterface $node, callable $errorMessageFunction) |
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{ |
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$typeCondition = $node->getTypeCondition(); |
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if (null !== $typeCondition) { |
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$type = typeFromAST($this->validationContext->getSchema(), $typeCondition); |
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if (null !== $type && !($type instanceof CompositeTypeInterface)) { |
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$this->validationContext->reportError(new ValidationException($errorMessageFunction($node), |
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[$typeCondition])); |
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} |
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} |
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} |
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} |
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digiaonline /
graphql-php
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