Package com.github.javaparser.ast.visitor

Class TreeVisitor

  • public abstract class TreeVisitor
extends Object
    Iterate over all the nodes in (a part of) the AST. In contrast to the visit methods in Node, these methods are implemented in a simple recursive way which should be more efficient. A disadvantage is that they cannot be quit in the middle of their traversal.

    • Constructor Detail

      • TreeVisitor

        public TreeVisitor()

    • Method Detail

      • visitLeavesFirst

        public void visitLeavesFirst​(Node node)

      • visitPreOrder

        public void visitPreOrder​(Node node)
        Performs a pre-order node traversal starting with a given node. When each node is visited, process(Node) is called for further processing.
        Parameters:
        node - The node at which the traversal begins.
        See Also:
        Pre-order traversal

      • visitPostOrder

        public void visitPostOrder​(Node node)
        Performs a post-order node traversal starting with a given node. When each node is visited, process(Node) is called for further processing.
        Parameters:
        node - The node at which the traversal begins.
        See Also:
        Post-order traversal

      • visitDepthFirst

        @Deprecated
public void visitDepthFirst​(Node node)
        Deprecated.
        As of release 3.1.0, replaced by visitPreOrder(Node)
        Performs a pre-order node traversal starting with a given node. When each node is visited, process(Node) is called for further processing.
        Parameters:
        node - The node at which the traversal begins.
        See Also:
        Pre-order traversal

      • visitBreadthFirst

        public void visitBreadthFirst​(Node node)
        https://en.wikipedia.org/wiki/Breadth-first_search
        Parameters:
        node - the start node, and the first one that is passed to process(node).

      • process

        public abstract void process​(Node node)
        Process the given node.
        Parameters:
        node - The current node to process.

      • visitDirectChildren

        public void visitDirectChildren​(Node node)
        Performs a simple traversal over all nodes that have the passed node as their parent.