org.lsmp.djep.xjep
Class DoNothingVisitor

java.lang.Object
  org.lsmp.djep.xjep.DoNothingVisitor

All Implemented Interfaces:

ParserVisitor

Direct Known Subclasses:

CommandVisitor, DeepCopyVisitor, ErrorCatchingVisitor, PolynomialCreator, PolynomialVisitor, RewriteVisitor, SimplificationVisitor, SubstitutionVisitor

public abstract class DoNothingVisitor
extends java.lang.Object
implements ParserVisitor

A Visitor which visits each node of a expression tree. It returns the top node. This visitor should be extended by Visitors which modify trees in place.

Author:

Rich Morris Created on 16-Nov-2003

Constructor Summary

DoNothingVisitor()

Method Summary

protected Node[]	acceptChildrenAsArray(Node node, java.lang.Object data) Gets the result of visiting children of a array of nodes.
java.lang.Object	visit(ASTConstant node, java.lang.Object data)
java.lang.Object	visit(ASTFunNode node, java.lang.Object data)
java.lang.Object	visit(ASTStart node, java.lang.Object data)
java.lang.Object	visit(ASTVarNode node, java.lang.Object data)
java.lang.Object	visit(SimpleNode node, java.lang.Object data)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DoNothingVisitor

public DoNothingVisitor()

Method Detail

acceptChildrenAsArray

protected Node[] acceptChildrenAsArray(Node node,
                                       java.lang.Object data)
                                throws ParseException

Gets the result of visiting children of a array of nodes.

Throws:

ParseException

visit

public java.lang.Object visit(SimpleNode node,
                              java.lang.Object data)
                       throws ParseException

Specified by:

visit in interface ParserVisitor

Throws:

ParseException

visit

public java.lang.Object visit(ASTStart node,
                              java.lang.Object data)
                       throws ParseException

Specified by:

visit in interface ParserVisitor

Throws:

ParseException

visit

public java.lang.Object visit(ASTConstant node,
                              java.lang.Object data)
                       throws ParseException

Specified by:

visit in interface ParserVisitor

Throws:

ParseException

visit

public java.lang.Object visit(ASTVarNode node,
                              java.lang.Object data)
                       throws ParseException

Specified by:

visit in interface ParserVisitor

Throws:

ParseException

visit

public java.lang.Object visit(ASTFunNode node,
                              java.lang.Object data)
                       throws ParseException

Specified by:

visit in interface ParserVisitor

Throws:

ParseException