GraphQL\Type\Definition\ResolveInfo::foldSelectionSet PHP Méthode

    private function foldSelectionSet(SelectionSetNode $selectionSet, $descend)
    {
        $fields = [];
        foreach ($selectionSet->selections as $selectionNode) {
            if ($selectionNode instanceof FieldNode) {
                $fields[$selectionNode->name->value] = $descend > 0 && !empty($selectionNode->selectionSet) ? $this->foldSelectionSet($selectionNode->selectionSet, $descend - 1) : true;
            } else {
                if ($selectionNode instanceof FragmentSpreadNode) {
                    $spreadName = $selectionNode->name->value;
                    if (isset($this->fragments[$spreadName])) {
                        /** @var FragmentDefinitionNode $fragment */
                        $fragment = $this->fragments[$spreadName];
                        $fields += $this->foldSelectionSet($fragment->selectionSet, $descend);
                    }
                }
            }
        }
        return $fields;
    }