traverse accepts null

Author: TomasVotruba

.github/workflows/docblock_check.yaml

@@ -38,8 +38,7 @@ jobs:
             -
                 name: Instrument sources
                 run: |
-                    honestype instrument src
-                    honestype instrument rules
+                    honestype instrument src rules tests
 
             # Load the helper for every PHP process, including any parallel test
             # workers which do not inherit a -d auto_prepend_file flag.

rules/Php70/Rector/List_/EmptyListRector.php

@@ -51,7 +51,7 @@ public function getNodeTypes(): array
     /**
      * @param List_ $node
      */
-    public function refactor(Node $node): ?Node
+    public function refactor(Node $node): ?List_
     {
         foreach ($node->items as $item) {
             if ($item instanceof ArrayItem) {

src/PhpParser/NodeTraverser/RectorNodeTraverser.php

@@ -198,13 +198,11 @@ private function traverseNode(Node $node): void
     }
 
     /**
-     * @param Node[] $nodes
+     * @param array<Node|null> $nodes The null can be in case of empty list(, , )
      * @return Node[]
      */
     private function traverseArray(array $nodes): array
     {
-        Assert::allIsInstanceOf($nodes, Node::class);
-
         $doNodes = [];
         foreach ($nodes as $i => $node) {
             if (! $node instanceof Node) {