/*****************************************************************************

 JEP 2.4.1, Extensions 1.1.1
      April 30 2007
      (c) Copyright 2007, Nathan Funk and Richard Morris
      See LICENSE-*.txt for license information.

 *****************************************************************************/
/* Generated By:JJTree: Do not edit this line. Node.java */

/* All AST nodes must implement this interface.  It provides basic
   machinery for constructing the parent and child relationships
   between nodes. */
package weasel.jep;


public interface Node {

	/**
	 * This method is called after the node has been made the current node. It
	 * indicates that child nodes can now be added to it.
	 */
	public void jjtOpen();

	/**
	 * This method is called after all the child nodes have been added.
	 */
	public void jjtClose();

	/**
	 * This pair of methods are used to inform the node of its parent.
	 */
	public void jjtSetParent(Node n);

	public Node jjtGetParent();

	/**
	 * This method tells the node to add its argument to the node's list of
	 * children.
	 */
	public void jjtAddChild(Node n, int i);

	/**
	 * This method returns a child node. The children are numbered from zero,
	 * left to right.
	 */
	public Node jjtGetChild(int i);

	/** Return the number of children the node has. */
	public int jjtGetNumChildren();

	/** Accept the visitor. **/
	public Object jjtAccept(ParserVisitor visitor, Object data) throws ParseException;

	/**
	 * Push the value of the node on the stack * public void evaluate(Stack
	 * stack) throws ParseException;
	 */
}
