Class NodeUtil

Method Details

• makeRecursiveIterator

  public static Iterator<Node> makeRecursiveIterator(Node node)

• cloneNode

  public static <T extends Node> T cloneNode(T orig)

• findNodeChildren

  public static List<Node> findNodeChildren(Node node)

• replaceChild

  public static boolean replaceChild(Node parent, Node oldChild, Node newChild)

• concat

  public static <T> T[] concat(T[] first, T[] second)

• getNthParent

  public static Node getNthParent(Node node, int n)

  Get the nth parent of a node, where the 0th parent is the node itself. Returns null if there are less than n ancestors.

• findAnnotation

  public static <T extends Annotation> T findAnnotation(Class<?> clazz, Class<T> annotationClass)

  find annotation in class/interface hierarchy.

• findParent

  public static <T> T findParent(Node start, Class<T> clazz)

• findAllParents

  public static <T> List<T> findAllParents(Node start, Class<T> clazz)

• collectNodes

  public static List<Node> collectNodes(Node parent, Node child)

• findFirstNodeInstance

  public static <T> T findFirstNodeInstance(Node root, Class<T> clazz)

• findAllNodeInstances

  public static <T> List<T> findAllNodeInstances(Node root, Class<T> clazz)

• findNodeInstancesShallow

  public static <T> List<T> findNodeInstancesShallow(Node root, Class<T> clazz)

  Like findAllNodeInstances(Node, Class) but do not visit children of found nodes.

• countNodes

  public static int countNodes(Node root)

• countNodes

  public static int countNodes(Node root, NodeUtil.NodeCountFilter filter)

• printCompactTreeToString

  public static String printCompactTreeToString(Node node)

• printCompactTree

  public static void printCompactTree(OutputStream out, Node node)

• printSourceAttributionTree

  public static String printSourceAttributionTree(Node node)

• printSourceAttributionTree

  public static void printSourceAttributionTree(OutputStream out, Node node)

• printSyntaxTags

  public static String printSyntaxTags(Object node)

  Returns a string listing the syntax tags, if any, associated with a node:

  • "[STATEMENT, ASSIGNMENT]" if tags have been applied;
  • "[]" if the node supports tags, but none are present; and
  • "" if the node does not support tags.

• printTree

  public static void printTree(OutputStream out, Node node)

  Prints a human readable form of a Node AST to the given PrintStream. This print method does not check for cycles in the node structure.

  Parameters:

  out - the stream to print to.

  node - the root node to write

• printTreeToString

  public static String printTreeToString(Node node)

• printTree

  public static void printTree(PrintWriter p, Node node)

• verify

  public static boolean verify(Node root)