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<?php |
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namespace Drupal\graphql_twig; |
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use GraphQL\Language\AST\DefinitionNode; |
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use GraphQL\Language\AST\OperationDefinitionNode; |
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use GraphQL\Language\AST\VariableDefinitionNode; |
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use GraphQL\Language\Parser; |
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use Twig_Compiler; |
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/** |
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* GraphQL meta information Twig node. |
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* |
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* A Twig node that will be attached to templates `class_end` to output the |
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* collected graphql query and inheritance metadata. Not parsed directly but |
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* injected by the `GraphQLNodeVisitor`. |
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*/ |
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class GraphQLNode extends \Twig_Node { |
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/** |
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* The modules query string. |
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* |
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* @var string |
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*/ |
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protected $query = ""; |
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/** |
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* The modules parent class. |
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* |
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* @var string |
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*/ |
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protected $parent = ""; |
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/** |
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* The modules includes. |
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* |
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* @var array |
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*/ |
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protected $includes = []; |
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/** |
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* Boolean indicator if this fragment includes operations. |
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* |
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* @var bool |
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*/ |
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public $hasOperations = FALSE; |
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/** |
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* The list of arguments accepted by operations in this fragment. |
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* |
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* @var array |
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*/ |
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public $arguments = []; |
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/** |
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* GraphQLNode constructor. |
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* |
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* @param string $query |
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* The query string. |
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* @param string $parent |
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* The parent template identifier. |
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* @param array $includes |
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* Identifiers for any included/referenced templates. |
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*/ |
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public function __construct($query, $parent, $includes) { |
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$this->query = $query; |
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$this->parent = $parent; |
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$this->includes = $includes; |
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if ($this->query) { |
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$document = Parser::parse($this->query); |
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/** @var \GraphQL\Language\AST\OperationDefinitionNode[] $operations */ |
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$operations = array_filter(iterator_to_array($document->definitions->getIterator()), function (DefinitionNode $node) { |
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return $node instanceof OperationDefinitionNode; |
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}); |
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$this->hasOperations = (bool) $operations; |
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$this->arguments = array_map(function (VariableDefinitionNode $node) { |
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return $node->variable->name->value; |
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}, array_reduce($operations, function ($carry, OperationDefinitionNode $node) { |
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return array_merge($carry, iterator_to_array($node->variableDefinitions->getIterator())); |
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}, [])); |
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} |
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parent::__construct(); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function compile(Twig_Compiler $compiler) { |
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$compiler |
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// Make the template implement the GraphQLTemplateTrait. |
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->write("\nuse \Drupal\graphql_twig\GraphQLTemplateTrait;\n") |
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// Write metadata properties. |
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->write("\npublic static function hasGraphQLOperations() { return ")->repr($this->hasOperations)->write("; }\n") |
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->write("\npublic static function rawGraphQLQuery() { return ")->string($this->query)->write("; }\n") |
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->write("\npublic static function rawGraphQLParent() { return ")->string($this->parent)->write("; }\n"); |
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$compiler->write("\npublic static function rawGraphQLIncludes() { return ["); |
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foreach ($this->includes as $include) { |
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$compiler->string($include)->write(","); |
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} |
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$compiler->write("]; }\n"); |
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$compiler->write("\npublic static function rawGraphQLArguments() { return ["); |
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foreach ($this->arguments as $argument) { |
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$compiler->string($argument)->write(","); |
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} |
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$compiler->write("]; }\n"); |
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} |
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} |
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drupal-graphql /
graphql-twig
This error could be the result of:
1. Missing dependencies
PHP Analyzer uses your
composer.jsonfile (if available) to determine the dependencies of your project and to determine all the available classes and functions. It expects thecomposer.jsonto be in the root folder of your repository.Are you sure this class is defined by one of your dependencies, or did you maybe not list a dependency in either the
requireorrequire-devsection?2. Missing use statement
PHP does not complain about undefined classes in
ìnstanceofchecks. For example, the following PHP code will work perfectly fine:If you have not tested against this specific condition, such errors might go unnoticed.