Neos\ContentRepository\Eel\FlowQueryOperations\ChildrenOperation::evaluate PHP Method

    public function evaluate(FlowQuery $flowQuery, array $arguments)
    {
        $output = array();
        $outputNodePaths = array();
        if (isset($arguments[0]) && !empty($arguments[0])) {
            $parsedFilter = FizzleParser::parseFilterGroup($arguments[0]);
            if ($this->earlyOptimizationOfFilters($flowQuery, $parsedFilter)) {
                return;
            }
        }
        /** @var NodeInterface $contextNode */
        foreach ($flowQuery->getContext() as $contextNode) {
            /** @var NodeInterface $childNode */
            foreach ($contextNode->getChildNodes() as $childNode) {
                if (!isset($outputNodePaths[$childNode->getPath()])) {
                    $output[] = $childNode;
                    $outputNodePaths[$childNode->getPath()] = true;
                }
            }
        }
        $flowQuery->setContext($output);
        if (isset($arguments[0]) && !empty($arguments[0])) {
            $flowQuery->pushOperation('filter', $arguments);
        }
    }