re.ast
Class REEmpty

java.lang.Object
  re.ast.RENode
      re.ast.REEmpty

public class REEmpty
extends RENode

A class to represent "\epsilon", an empty regular expression.

Constructor Summary

REEmpty()

Method Summary

<DownType,UpType> UpType	accept(PropagatingVisitor<DownType,UpType> visitor, DownType context) Accepts a propagating visitor parameterized by two types.
void	accept(Visitor visitor) Accepts a visitor object as part of the visitor pattern.

Methods inherited from class java.lang.Object

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

Constructor Detail

REEmpty

public REEmpty()

Method Detail

accept

public void accept(Visitor visitor)

Description copied from class: RENode

Accepts a visitor object as part of the visitor pattern.

Specified by:

accept in class RENode

Parameters:

visitor - A visitor.

accept

public <DownType,UpType> UpType accept(PropagatingVisitor<DownType,UpType> visitor,
                                       DownType context)

Description copied from class: RENode

Accepts a propagating visitor parameterized by two types.

Specified by:

accept in class RENode

Type Parameters:

DownType - The type of the object holding the context.

UpType - The type of the result object.

Parameters:

visitor - A propagating visitor.

context - An object holding context information.

Returns:

The result of visiting this node.