/**
* Return implementations of `type` that include `fieldName` as a valid field.
*
* @param Schema $schema
* @param AbstractType $type
* @param $fieldName
* @return array
*/
static function getImplementationsIncludingField(Schema $schema, AbstractType $type, $fieldName)
{
$types = $schema->getPossibleTypes($type);
$types = Utils::filter($types, function ($t) use($fieldName) {
return isset($t->getFields()[$fieldName]);
});
$types = Utils::map($types, function ($t) {
return $t->name;
});
sort($types);
return $types;
}
public function __invoke(ValidationContext $context)
{
$operationCount = 0;
return [NodeKind::DOCUMENT => function (DocumentNode $node) use(&$operationCount) {
$tmp = Utils::filter($node->definitions, function ($definition) {
return $definition->kind === NodeKind::OPERATION_DEFINITION;
});
$operationCount = count($tmp);
}, NodeKind::OPERATION_DEFINITION => function (OperationDefinitionNode $node) use(&$operationCount, $context) {
if (!$node->name && $operationCount > 1) {
$context->reportError(new Error(self::anonOperationNotAloneMessage(), [$node]));
}
}];
}