NodeVisitor<TBaseNode, TNode, TResult> Class

Definition

A Visitor<TNode, TResult> that only visits nodes of a specific type and does not take a context object. Visiting a node of any other type calls VisitUnhandledNode(TBaseNode), which throws by default. Typed visitors are usually combined in a CompositeVisitor<TBaseNode, TResult>, which dispatches each node to the visitor for its type.

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

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Type Parameters

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