NodeVisitor<TContext, TBaseNode, TNode, TResult> Class

Definition

A Visitor<TContext, TNode, TResult> that only visits nodes of a specific type. Visiting a node of any other type calls VisitUnhandledNode(TContext, TBaseNode), which throws by default. Typed visitors are usually combined in a CompositeVisitor<TContext, TBaseNode, TResult>, which dispatches each node to the visitor for its type.

public abstract class NodeVisitor<TContext, TBaseNode, TNode, TResult> : Visitor<TContext, TBaseNode, TResult>
   where TBaseNode : Node<TBaseNode>
   where TNode : TBaseNode

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Type Parameters

Name	Description
TContext	The type of the context object.
TBaseNode	The base type of all nodes in the tree.
TNode	The type of the nodes to visit.
TResult	The type of the result of visiting a node.

Constructors

Name	Description
NodeVisitor()

Methods

Name	Description
VisitNode(TContext, TBaseNode)	Called to visit a node.
VisitNode(TContext, TNode)	Called to visit a node of type TNode.
VisitUnhandledNode(TContext, TBaseNode)	Called to visit a node that is not of type TNode. Throws an InvalidOperationException by default; override to return a fallback value instead.