Sstalle\php7cc\NodeVisitor\ForeachVisitor::checkAddingToArrayInByReferenceForeach PHP Метод

    protected function checkAddingToArrayInByReferenceForeach(Node $node)
    {
        if (!($node instanceof Node\Expr\Assign || $node instanceof Node\Expr\AssignRef) || !$node->var instanceof Node\Expr\ArrayDimFetch || !$node->var->var instanceof Node\Expr\Variable) {
            return;
        }
        /** @var Node\Stmt\Foreach_ $foreach */
        foreach ($this->getCurrentLoopStack() as $foreach) {
            if (!$foreach->byRef) {
                continue;
            }
            if ($node->var->var->name === $this->getForeachVariableName($foreach)) {
                $this->addContextMessage('Possible adding to array on the last iteration of a by-reference foreach loop', $node);
            }
        }
    }