comparison vendor/nikic/php-parser/doc/component/Walking_the_AST.markdown @ 17:129ea1e6d783

Update, including to Drupal core 8.6.10

 
 ```
 private $class = null;
 public function enterNode(Node $node) {
     if ($node instanceof Node\Stmt\Class_ &&
-        $node->namespaceName->toString() === 'Foo\Bar\Baz'
+        $node->namespacedName->toString() === 'Foo\Bar\Baz'
     ) {
         $this->class = $node;
         return NodeTraverser::STOP_TRAVERSAL;
     }
 }

 
 ```php
 $traverser = new NodeTraverser;
 $traverser->addVisitor($visitorA);
 $traverser->addVisitor($visitorB);
-$stmts = $traverser->traverser($stmts);
+$stmts = $traverser->traverse($stmts);
 ```
 
 It is important to understand that if a traverser is run with multiple visitors, the visitors will
 be interleaved. Given the following AST excerpt
 

 When using multiple visitors, it is important to understand how they interact with the various
 special enterNode/leaveNode return values:
 
  * If *any* visitor returns `DONT_TRAVERSE_CHILDREN`, the children will be skipped for *all*
    visitors.
+ * If *any* visitor returns `DONT_TRAVERSE_CURRENT_AND_CHILDREN`, the children will be skipped for *all*
+   visitors, and all *subsequent* visitors will not visit the current node.
  * If *any* visitor returns `STOP_TRAVERSAL`, traversal is stopped for *all* visitors.
  * If a visitor returns a replacement node, subsequent visitors will be passed the replacement node,
    not the original one.
  * If a visitor returns `REMOVE_NODE`, subsequent visitors will not see this node.
  * If a visitor returns an array of replacement nodes, subsequent visitors will see neither the node

 
 // Find all class nodes.
 $classes = $nodeFinder->findInstanceOf($stmts, Node\Stmt\Class_::class);
 
 // Find all classes that extend another class
-$extendingClasses = $nodeFinder->findInstanceOf($stmts, function(Node $node) {
+$extendingClasses = $nodeFinder->find($stmts, function(Node $node) {
     return $node instanceof Node\Stmt\Class_
         && $node->extends !== null;
 });
 
 // Find first class occuring in the AST. Returns null if no class exists.