| Class | Description | 
                            | CompositeVisitor | A composite of many visitors. | 
                            | FlatNodeListTraversal | A simple iterator over an ordered (flat) List of the nodes of the AST. | 
                            | MindMapPrinter | An antlr AST visitor that prints a format suitable for viewing in http://freemind.sourceforge.net | 
                            | NodeAsHTMLPrinter | A visitor that prints a html tags of each node to the supplied PrintStream | 
                            | NodeCollector | A simple antlr AST visitor that collects all nodes into a List. | 
                            | NodePrinter | A simple antlr AST visitor that outputs the tokenName of each node in a pseudo xml style. | 
                            | PreOrderTraversal | A simple preorder traversal over the supplied antlr AST. | 
                            | SourceCodeTraversal | A treewalker for the antlr generated AST that attempts to visit the
 AST nodes in the order needed to generate valid groovy source code. | 
                            | SourcePrinter | An antlr AST visitor that prints groovy source code for each visited node
 to the supplied PrintStream. | 
                            | TraversalHelper | Helper Class for Antlr AST traversal and visitation. | 
                            | VisitorAdapter | A default implementation of all visitor methods. |