//==============================================================================
// VariableReferenceNode.java
//==============================================================================

package sample.visitor;

/**
* Responsibilities:<ul>
* <li>represents a variable reference in a program.</li>
* </ul><p></p>
* 
* @author Copyright 2003 Nikolas S. Boyd.
*/
public class VariableReferenceNode extends Node {

	/**
	* Responsibilities:<ul>
	* <li>visits a variable reference node in a program AST.</li>
	* </ul><p></p>
	* 
	* @author Copyright 2003 Nikolas S. Boyd.
	*/
	public interface Visitor {

		/**
		* Visits a variable reference <tt>node</tt>.
		* @param node represents a node in a program AST.
		*/
		public void visit(VariableReferenceNode node);

	} // VariableReferenceNode.Vistor

	/**
	* Accepts a node <tt>visitor</tt> for this kind of AST node.
	* @param visitor knows what to do with a variable reference.
	*/
	public void accept(Visitor visitor) {
		visitor.visit(this);
		return;
	}

	/**
	* Accepts a node <tt>visitor</tt> for this kind of AST node.
	* @param visitor must know how to visit this kind of node.
	*/
	public void accept(Node.Visitor visitor) {
		accept((Visitor) visitor);
		return;
	}

	// ... other aspects of the variable reference node ...

} // VariableReferenceNode